AGOURON PHARMACEUTICALS INC
10-K, 1997-08-21
PHARMACEUTICAL PREPARATIONS
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           UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                        Washington, D.C. 20549
                              FORM 10-K
(Mark One)
 X  ANNUAL  REPORT  PURSUANT  TO SECTION 13 OR 15(d) OF THE  SECURITIES
    EXCHANGE ACT OF 1934 [FEE REQUIRED]

For the fiscal year ended June 30, 1997
                                  OR
    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
    ACT OF 1934 [NO FEE REQUIRED]For the transition period from
 .....................................      to      .............................
Commission file number 0-15609
                      Agouron Pharmaceuticals, Inc.
           (Exact name of registrant as specified in its charter)

         California                                     33-0061928
(State or other jurisdiction of            (I.R.S. Employer Identification No.)
incorporation or organization)

10350 North Torrey Pines Road, La Jolla, California                  92037-1020
(Address of principal executive offices)                             (Zip Code)

Registrant's telephone number, including area code  (619) 622-3000

Securities registered pursuant to Section 12(b) of the Act:   None

Securities registered pursuant to Section 12(g) of the Act:

                      Common Stock, without par value
                             (Title of class)

     Indicate by check mark if disclosure of delinquent  filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during the  preceding  12 months and (2) has been  subject to such  filing
requirements for the past 90 days. Yes X No
                                   -----

     On August 15, 1997, the aggregate  market value of the voting stock held by
nonaffiliates  totaled  approximately  $1,372,842,000 based on the closing stock
price as reported by The Nasdaq Stock  Market.  On August 15,  1997,  there were
approximately  15,015,000  shares of common  stock,  without  par value,  of the
registrant issued and outstanding.

                  DOCUMENTS  INCORPORATED  BY REFERENCE

     The  registrant's  definitive  proxy  statement to be prepared  pursuant to
Regulation  14A and filed in  connection  with  solicitation  of proxies for its
Annual Meeting of Stockholders,  to be held on November 6, 1997, is incorporated
by reference into Part III of this Form 10-K.
                                       1

<PAGE>



                                   PART I

Item 1.  BUSINESS

     Except for the  historical  information  contained  herein,  the  following
"Business"  section contains  forward-looking  statements that involve risks and
uncertainties.  The Company's actual results could differ  materially from those
discussed  here.  Factors  that could cause or  contribute  to such  differences
include,  but are not limited to, those discussed in the "Business"  section and
Exhibit 99 to this Form 10-K. General

     The Company was  organized  and  incorporated  in  California in June 1984.
Agouron is an  integrated  pharmaceutical  company  committed to the  discovery,
development,  manufacturing and marketing of small-molecule  drugs engineered to
inactivate  proteins  which  play key roles in  cancer,  AIDS and other  serious
diseases.  The  Company  is  currently  marketing  its first  drug,  VIRACEPT(R)
(nelfinavir mesylate) for treatment of HIV infection.  In addition,  the Company
is  conducting  phase II/III  clinical  trials for a second  drug,  THYMITAQ(TM)
(nolatrexed  dihydrochloride,  formerly known as AG337),  for treatment of solid
malignant tumors. Further, the Company has 18 programs in progress for discovery
or  development  of other new  drugs in the  fields of  cancer,  viral  disease,
inflammatory  disease and other  serious  diseases.  Seven of these  preclinical
programs are being  pursued by Alanex  Corporation  ("Alanex"),  a  wholly-owned
subsidiary of Agouron. The Company's business currently consists of one business
segment, the operations of which are described below.

     Agouron's  goal is to generate  increasing  profitability  from the sale of
drugs generated principally from its own drug discovery and development efforts.
To augment its technical  capabilities,  to enhance the likelihood of successful
commercialization of its products and to offset some of its operating costs, the
Company has entered into  collaborative  research and  development  arrangements
with other  companies.  Consistent  with this  commercial  goal, the Company has
generally  retained  significant  commercial  rights in drugs  developed  in its
collaborative  research and  development  programs funded in whole or in part by
other  companies.  The  Company  anticipates  that  its  successfully  developed
products will be commercialized  both through its own direct sales and marketing
activities  in certain  pharmaceutical  markets  and through  manufacturing  and
marketing relationships with other pharmaceutical companies.

     The Company's  common stock account has evolved  through a series of public
offerings and private  placements of its equity  securities  and the exercise of
various  warrants and employee stock options.  Five public  offerings  (calendar
1987,  1989,  1991,  1995 and 1996)  generated  net  proceeds  of  approximately
$211,600,000 and the issuance of approximately 9,894,000 shares. The most recent
public  offering  raised  approximately  $77,245,000  through  the  issuance  of
2,735,000 shares. Private placements have generated approximately $17,100,000 in
net proceeds and the issuance of approximately 2,782,000 shares. The exercise of
warrants and employee  stock options  (including  employee  stock  purchase plan
transactions)  have  generated  proceeds of  approximately  $15,300,000  and the
issuance of approximately 1,317,000 shares. In 1997, the Company acquired Alanex
in a purchase  transaction through the issuance of approximately  722,000 shares
of the Company's common stock valued at approximately $61,000,000. The
                                       2
<PAGE>


Company also  recorded in its  financial  statements a  $12,100,000  increase to
common stock which reflects the  anticipated  tax benefit of stock options which
have been exercised through fiscal 1997.

Narrative Description of Business

     Agouron  is  developing  innovative  drugs for  treatment  of  cancer,  HIV
infection and other serious diseases and has expended approximately $299,000,000
on  research  and  development  since its  inception,  excluding  a  $57,500,000
write-off for  in-process  technology  purchased in 1997 in the  acquisition  of
Alanex.

  VIRACEPT

     In  March  1997,  the  Company  received  clearance  from the Food and Drug
Administration ("FDA") to market its first drug, VIRACEPT, a potent HIV protease
inhibitor  that  substantially  decreases  viral load and  increases  CD4+T cell
counts, when used in combination drug therapy.  The orally administered  product
is available in adult and  pediatric  formulations.  Protease  inhibitors  are a
relatively new class of drugs.

     Currently,   according  to  the  International  AIDS  Society,  combination
antiretroviral  drug therapy,  including a potent  protease  inhibitor,  such as
VIRACEPT,  is  recommended  for  HIV-infected  individuals  with  plasma HIV RNA
greater than 5,000-10,000 copies/mL.

     Agouron has developed  VIRACEPT in  collaboration  with the  pharmaceutical
division of Japan  Tobacco Inc.  ("JT").  Agouron and JT have granted  exclusive
commercial  rights in Europe,  Asia and certain other  countries in the world to
Hoffmann-La Roche Inc. and F. Hoffmann-La  Roche Ltd ("Roche").  The Company and
JT  will  share   profits   and/or   royalties   equally   from  the   worldwide
commercialization of VIRACEPT.

     The Company's fiscal 1997 operating results were significantly  impacted by
the  clinical  development  and  commercialization  of  VIRACEPT,  resulting  in
increased  costs and  revenues.  VIRACEPT  sales  since its launch in March 1997
totaled $56,969,000 for the fiscal year ended June 30, 1997. Published data from
industry surveys indicate that the demand for VIRACEPT has continued to increase
steadily since its introduction in March 1997. The Company estimates that 35,000
patients were taking  VIRACEPT at the end of June 1997. It is  anticipated  that
continued increasing VIRACEPT sales will make a substantial  contribution toward
the  achievement by the Company of profitable  financial  results in fiscal 1998
and beyond.

  THYMITAQ

     THYMITAQ, an inhibitor of the enzyme thymidylate synthase, is presently the
subject of phase II/III clinical studies  evaluating an intravenous  formulation
of the drug as a  chemotherapeutic  agent for the  treatment of malignant  solid
tumors  associated  with  cancer  of the  head/neck  and  liver  (hepatocellular
carcinoma).  An oral  formulation  of  THYMITAQ is also being  developed  by the
Company.  If successful,  the phase II/III pivotal clinical trials could lead to
submission  of a New Drug  Application  ("NDA") for THYMITAQ in calendar 1998 or
calendar 1999.  Agouron intends to engage in the sales and marketing of THYMITAQ
in North America upon its approval by the FDA.

                                       3
<PAGE>



     In June 1996,  Agouron  granted Roche worldwide  development  rights in two
anti-cancer  drugs  currently  being  developed  by the  Company  and  agreed to
collaborate with Roche on an additional  early-stage  anti-cancer drug discovery
program.  In return for rights to the Company's most advanced  anti-cancer drugs
(THYMITAQ and an earlier stage  AG3340),  Roche has paid  $15,000,000 in initial
license fees and has agreed to pay milestone  payments of up to $40,000,000  and
to bear  80% of the  future  development  costs  of these  two  drugs.  In North
America,  the Company and Roche will cooperatively market the two drugs and will
share equally in resulting  profits.  Outside of North America,  Roche will lead
commercialization  efforts  and pay  royalties  to the  Company  or, in  certain
circumstances,  will share  profits  with the  Company.  For similar  commercial
rights to compounds  generated in a  collaborative  research  program focused on
cyclin-dependent  kinases  (initially  targeting the enzyme  cdk4),  Roche is to
provide annual research  support to the Company of $3,000,000 for three years as
well as subsequent  milestone  payments of up to  $20,000,000  and has agreed to
bear 80% of any post-research development costs.


                                       4
<PAGE>


Research and Development Programs


     Agouron's research and development  programs primarily address the areas of
cancer, viral disease,  inflammatory disease, pain and diabetes.  Agouron's drug
discovery  programs apply the Company's core  technologies of  three-dimensional
structure based drug design and high throughput  screening of chemical libraries
generated by computation-directed combinatorial chemistry.

     The  following  table  outlines  the status of the  Company's  portfolio of
research and  development  programs.  Agouron is pursuing some of these programs
independently  while others are being  undertaken  in  collaboration  with other
companies.
<TABLE>
<CAPTION>

Program                                   Indication                 Development Stage          Partner
- -------                                   ----------                 -----------------          -------
<S>                                      <C>                        <C>                         <C>
Cancer

    THYMITAQ-i.v.                         Solid Tumors                   Phase II/III            Roche
    THYMITAQ-oral                         Solid Tumors                   Phase I                 Roche
    AG2034                                Solid Tumors                   Phase I                 None
    AG3340                                Metastasis                     Phase I                 Roche
    AICART                                Solid Tumors                   Research                None
    cdk4                                  Solid Tumors                   Research                Roche
    VEGF Receptor                         Solid Tumors                   Research                None

Viral Disease

    VIRACEPT                              HIV Infection                  Approved                JT
    Rhinovirus                            Common Cold                    Research                None
    Cytomegalovirus                       CMV Infection                  Research                JT
    Herpes simplex virus                  Herpes Infection               Research                JT
    Hepatitis C virus                     Viral Diseases                 Research                JT

Inflammatory Disease

    MMP                                   Arthritis                      Phase I                 Roche
    AICART                                Inflammation                   Research                None

Pain
    Opiate Agonist*                       Pain                           Preclinical             Astra Pharma
    Antagonist*                           Undisclosed                    Research                Roche Bioscience


Diabetes
    Antagonist*                           Undisclosed                    Research                Novo Nordisk
    Agonist*                              Undisclosed                    Research                Novo Nordisk

Other

    Neuropeptide Y Antagonist*            Obesity and cardiovascular
                                            disease                      Preclinical             None
    CRF Antagonist*                       Depression and Anxiety         Preclinical             None
    GnRH Antagonist*                      Endometriosis and Sex          Research                None
                                          Hormone-Dependent Tumors
</TABLE>

*  Programs undertaken by Alanex

                                       5
<PAGE>


Cancer

     Overview

     The  development  of  new  drugs  for  treatment  of  cancer  is a  primary
scientific  and  commercial  focus of the Company.  Cancer is the second leading
cause of death in the  United  States  and most  developed  nations.  While much
progress  has been  made in the  treatment  of  certain  forms of  cancer,  most
existing  anti-cancer drugs display limited efficacy and significant  toxicities
that restrict their clinical  usefulness.  As a result, there remains a critical
need for anti-cancer  drugs which are less toxic and more efficacious  either as
tumoricidal (tumor-killing) or tumoristatic (tumor-controlling) agents.

     The  Company's  anti-cancer  drug  discovery and  development  programs are
targeting  inhibitors of the following  enzymes:  thymidylate  synthase  ("TS");
glycinamide ribonucleotide  formyltransferase  ("GART"); matrix metalloproteases
("MMPs");    aminoimidazole   carboxamide    ribonucleotide    formyltransferase
("AICART");  cyclin  dependent  kinase 4 ("cdk4");  and a receptor  for vascular
endothelial growth factor ("VEGF").  Three of these enzyme targets (TS, GART and
AICART) have a common  structural  motif that permits lead  inhibitors  from one
program to be useful potentially in others.

     TS Inhibitors: THYMITAQ

     The enzyme TS  catalyzes  a critical  step in the  synthesis  of DNA and is
especially  crucial  to  cancer  cells  undergoing  uncontrolled  proliferation.
Agouron  has focused on the design and  development  of TS  inhibitors  of novel
chemical  character  that may be  capable of  penetrating  fatty  membranes  and
tissues,  circumventing  some of the more common  forms of drug  resistance  and
passing  into  and out of cells  by  passive  diffusion,  allowing  for  greater
clinical control of toxicity and for a broader spectrum of anti-tumor  activity.
Agouron's development compound in the TS program is THYMITAQ.

     Pivotal phase II/III  clinical trials are currently under way in the United
States,  Canada,  Europe,  and Asia for evaluation of THYMITAQ as a single agent
treatment  in cancer of the  head/neck  and in liver  cancer.  For  treatment of
head/neck  cancer,  THYMITAQ  is being  compared to the  chemotherapeutic  agent
methotrexate in patients who have failed  first-line  therapy.  For treatment of
liver cancer,  THYMITAQ is being  evaluated both in a  non-comparative  clinical
trial and in a clinical  trial which compares  THYMITAQ to the  chemotherapeutic
agent doxorubicin. If successful, the pivotal trials could permit the Company to
file a NDA for THYMITAQ in calendar 1998 or calendar 1999.

     THYMITAQ is  currently  being  developed by Agouron in  collaboration  with
Roche. Under the terms of the collaboration,  Roche will bear 80% of development
costs of THYMITAQ and will lead  commercialization  of the drug outside of North
America  subject to payment of  royalties  to Agouron.  Roche and  Agouron  will
co-promote  THYMITAQ in North America and will share equally in profits  derived
from North American sales of the drug.


                                       6
<PAGE>


     GART Inhibitors: AG2034

     AG2034  is a potent,  selective  inhibitor  of GART -- a key  enzyme in the
biochemical  pathway  through which tumor cells  synthesize  purines,  essential
components of DNA.  With the exception of liver cells,  all normal human tissues
obtain purines through an alternative pathway (the purine salvage pathway).  The
Company  believes that inhibitors of GART will show a high degree of selectivity
for  tumor  cells  and  less   significant   bone  marrow  toxicity  than  other
chemotherapeutic agents.

     In fiscal  1997,  Agouron  began  Phase I studies  of AG2034 in the  United
States and United  Kingdom.  To date,  27 patients have been enrolled in the two
studies.  The Company  presently  retains all commercial rights to any compounds
resulting from this program.

     MMP Inhibitors: AG3340

     Independent  research has shown MMPs to be involved in many disease states.
Certain MMPs have been  associated  with tumor growth,  the  metastasis of tumor
cells to  secondary  sites  within the body and the growth of new blood  vessels
(angiogenesis) through which tumor cells obtain nutrients and growth factors.

     In fiscal  1997,  Agouron  completed  a Phase I study of AG3340,  a potent,
selective  inhibitor of certain  MMPs, in  Edinburgh,  Scotland.  In this study,
healthy male volunteers  received single and multiple doses of AG3340 between 10
mg and 200 mg in tablet  form.  The  purpose  of the study was to  evaluate  the
tolerability of the drug and to determine whether adequate blood  concentrations
could be achieved  following oral  administration.  AG3340 was well tolerated at
all  dose  levels   studied.   AG3340  was  rapidly   absorbed   following  oral
administration.   Sustained  blood   concentrations   were  observed  that  were
substantially greater than those showing efficacy in animal cancer models.

     In June 1997,  Agouron  received  clearance  from the FDA to begin  Phase I
clinical studies of AG3340 in the United States.  Under an  Investigational  New
Drug  Application  ("IND")  submitted to the FDA in May 1997,  the University of
Wisconsin  Comprehensive Cancer Center in Madison,  Wisconsin and The Vanderbilt
Clinic at  Vanderbilt  University in Nashville,  Tennessee are  proceeding  with
extended, dose-escalation studies of AG3340 in patients with advanced cancer. If
successful,   the  completion  of  this  study  will  position  the  Company  to
investigate the safety and anti-cancer  activity of AG3340 in longer-term  Phase
II clinical trials.

     AG3340 is currently being developed by Agouron in collaboration with Roche.
Under the terms of the  collaboration,  Roche  will bear 80% of the  development
costs of AG3340  and will lead  commercialization  of the drug  outside of North
America  subject to payment of  royalties  to Agouron.  Roche and  Agouron  will
co-promote  AG3340 in North  America and will share  equally in profits  derived
from North American sales of the drug.

     AICART Inhibitors

     The  enzyme  AICART  catalyzes  a  rate-determining   step  in  the  purine
biosynthetic  pathway and represents a second target for anti-cancer  drugs that
are active by virtue of their anti-purine
                                       7
<PAGE>


effects.  The Company's scientists have solved the  three-dimensional  molecular
structure  of AICART and are  engaged in design,  synthesis  and  evaluation  of
AICART  inhibitors  intended to be efficacious  in the treatment of cancer.  The
Company presently retains all commercial rights to any compounds  resulting from
this program.

     cdk4 Inhibitor

     Cyclin-dependent  kinases are  enzymes  that play roles in  regulating  the
transitions  between  phases in the life  cycle of all  cells.  A member of this
family of enzymes known as cdk4 has been  implicated by independent  research in
driving  cells  from  a  quiescent  phase  to  the  highly  proliferative  phase
characteristic of malignancies - particularly in familial melanomas,  esophageal
carcinomas  and  pancreatic  cancers.  Agouron is  engaged  in a drug  discovery
program aimed at the design of selective small molecule drugs with the potential
to inhibit the activity of cdk4 and  therefore  block the  transition  of cancer
cells into their proliferative phase.

     This program is being pursued in collaboration  with Roche,  which will pay
Agouron annual research  funding for three years in support of the cdk4 program.
Commercial  rights for all  indications  in compounds  that are generated in the
program are similar to those held by Roche for the MMP inhibitor AG3340.

     VEGF Receptor

     The process known as angiogenesis, the formation of new blood vessels, is a
key  factor  in the  maintenance  and  progression  of  several  disease  states
including  the  metastasis of malignant  tumors.  The ability of cancer cells to
carry out  angiogenesis  depends in part upon the activity of a protein known as
Vascular  Endothelial  Growth Factor  ("VEGF")  which,  by binding to a receptor
known as kdr, triggers the growth of endothelial cells.  Agouron is engaged in a
drug discovery program whose objective is the design of drugs that block the kdr
receptor for VEGF and, therefore,  compromise the ability of tumors to carry out
a key process in  angiogenesis.  The Company  presently  retains all  commercial
rights to any compounds resulting from this program.

Viral Disease

     Overview

     The development of new drugs for the treatment of certain viral diseases is
another scientific and commercial focus of the Company. The Company is presently
conducting  programs  aimed at discovery  and/or  development of four classes of
anti-viral  drugs  that  block  viral  proteases,  enzymes  required  by several
families of pathogenic viruses to carry out replication and infection. Agouron's
anti-viral drug programs include a HIV protease inhibitor (VIRACEPT), rhinovirus
3C  protease  inhibitors,  herpes  virus  protease  inhibitors,  cytomegalovirus
inhibitors and hepatitis C protease inhibitors. Agouron is developing certain of
its anti-viral drugs in collaboration with JT.


                                       8
<PAGE>


     HIV Protease Inhibitor: VIRACEPT

     HIV protease is an enzyme that performs an essential role in the infectious
cycle of HIV, and clinical  research has  demonstrated  that  inhibition  of the
protease  enzyme renders HIV unable to form new infectious  virus.  Today,  four
FDA-approved  HIV  protease  inhibitors   (including   VIRACEPT)  are  making  a
significant contribution in the management of HIV disease.

     VIRACEPT was cleared by the FDA for marketing in the United States in March
1997  pursuant  to the  FDA's  guidelines  for  accelerated  approval.  VIRACEPT
development  activities now include certain  additional  phase II/III studies to
facilitate the full approval of the drug and certain phase IV marketing  studies
designed to expand the utilization of the product.

     Rhinovirus 3C Protease Inhibitors

     Rhinoviruses  are  believed  to be the single  most  frequent  cause of the
common cold. While rhinovirus infections are a periodic annoyance to most normal
individuals,  they may produce more severe and prolonged symptoms in people with
chronic obstructive pulmonary disease,  such as asthma and emphysema.  All known
strains of rhinoviruses depend on a critical enzyme, the 3C protease, at several
stages  of  their  life  cycle  for  production  of  new   infectious   viruses.
Agouron-designed  potent,  selective rhinovirus 3C protease inhibitors currently
are being evaluated in preclinical pharmacological studies.

     CMV and HSV-1 Protease Inhibitors

     Among  the most  clinically  significant  members  of the  family of herpes
viruses are herpes simplex virus-1 ("HSV-1") and cytomegalovirus  ("CMV").  Like
HIV and rhinoviruses, HSV-1 and CMV each contain a protease enzyme essential for
virus   maturation   and   infection.   Agouron   scientists   have  solved  the
three-dimensional  molecular  structure of the targeted protease enzyme from CMV
and are seeking to solve the HSV-1  protease in preparation  for  application of
Agouron's drug design  technologies.  However,  no inhibitor of HSV-1 or CMV has
yet been  selected by Agouron  for  development.  The  Company is pursuing  this
research program in collaboration with JT.

     Hepatitis C Protease Inhibitors

     The hepatitis C virus ("HCV") is a virus that causes illness ranging from a
mild flu-like disease to progressive liver disease,  cirrhosis and primary liver
cancer.  The ability to treat  infection by HCV  represents a significant  unmet
clinical need, particularly in Asian countries.  HCV depends upon a key protease
enzyme for the production of new infectious virus.

     During  fiscal  1997,  Agouron  scientists  solved  the   three-dimensional
molecular structure of the protease enzyme encoded by the human HCV. Solution of
the HCV protease structure has permitted the initiation of a program to design a
new class of  anti-viral  drugs that block the HCV  protease and disrupt the HCV
life cycle.  However,  no inhibitor of HCV has yet been  selected by Agouron for
development. The Company is pursuing this research program in collaboration with
JT.


                                       9
<PAGE>


Inflammatory Disease

     Overview

     Another  scientific and commercial  focus of the Company is the development
of drugs for treatment of inflammatory disease. These include MMP inhibitors for
use  against   degenerative   diseases   such  as   rheumatoid   arthritis   and
osteoarthritis  and AICART  inhibitors for use as  anti-inflammatory  agents and
immuno-suppressive agents for treatment of various neuro-degenerative disorders.

     MMP Inhibitors

     In addition  to their role in the growth and  metastasis  of solid  tumors,
MMPs display high levels of enzymatic activity in degenerative  diseases such as
rheumatoid  arthritis and osteoarthritis.  Certain members of the MMP family are
associated most closely with these disease states and, Agouron  believes,  offer
targets  for orally  active  drugs with  potential  for  minimal  toxicity.  The
development  of MMP  inhibitors  associated  with these disease  states is being
pursued  by an  affiliate  of  Roche.  If  successfully  developed  by the Roche
affiliate,  the Company believes such selective  inhibitors of certain MMPs have
the potential to interrupt the  progression  of arthritic  disease itself rather
than just to treat the symptoms.  The Company will receive a royalty on sales by
Roche  of  any  anti-inflammatory  products  resulting  from  the  collaborative
program.

     AICART Inhibitors

     AICART  is  being  pursued  by  Agouron  scientists  as a  target  for  the
development of novel  anti-inflammatory  drugs.  It is widely  believed that the
anti-inflammatory  effects observed following administration of low doses of the
anti-cancer  drug  methotrexate  result from the drug's  indirect  inhibition of
AICART.  Used for chronic  therapy,  methotrexate  accumulates  in the liver and
other tissues and frequently  results in serious  toxicity.  Agouron  scientists
believe that inhibitors of AICART designed to avoid  accumulation in tissues may
be  superior  anti-inflammatory  drugs for  conditions  such as  arthritis.  The
Company's initial lead compounds in this program are being used to validate this
hypothesis.  Having  solved the  three-dimensional  molecular  structure  of the
AICART enzyme,  Agouron scientists are engaged in the design of novel inhibitors
of the AICART enzyme.  No candidate for  development  has yet been identified in
this  program.  The  Company  presently  retains  all  commercial  rights to any
compounds resulting from this program.

The research programs of the Company's newly acquired  wholly-owned  subsidiary,
Alanex Corporation, are described below:

Pain

     Overview

     The drugs used for the treatment of severe or chronic pain are generally of
limited  effectiveness  or associated with problems of tolerance,  addiction and
gastrointestinal side effects.

                                       10
<PAGE>


As a result,  there is a substantial  need for effective pain  relieving  agents
with a more favorable side effect profile.

     Opiate Agonist

     On  behalf of Astra  Pharma,  Alanex  applied  its  Pharmacophore  Directed
Parallel  Synthesis  technology  to discover a new class of analgesic  compounds
that interact with a novel opiate  receptor  target.  These  compounds have been
shown to be  orally  active  in  preclinical  studies  and are  currently  being
considered by Astra Pharma as clinical development  candidates.  Under the terms
of an  agreement  with Astra  Pharma,  Alanex is entitled  to receive  milestone
payments  related  to  the  development  of  any  products  resulting  from  the
collaborative  agreement, but has no right to commercialize or receive royalties
on any such products.

     Antagonist for undisclosed target

     In June 1996, Alanex entered into a collaboration  with Roche Bioscience to
discover an antagonist for an undisclosed target for the treatment of pain. This
project is in the lead  development  phase.  Alanex will  perform all aspects of
this  drug  discovery  project,   including  high-throughput  screening  of  its
exploratory  library and lead  optimization to provide Roche Bioscience with one
or more  drug  candidates.  Roche  Bioscience  will  fund all of  Alanex's  pain
antagonist  research  activities.  The  collaboration  agreement  provides Roche
Bioscience  with  an  option  to  exclusively   license  compounds  for  further
development  and worldwide  commercialization.  In return,  Alanex would receive
milestone  payments and  royalties on any sales of products  developed  from the
collaboration.

Diabetes

     Diabetes is a common and  frequently  devastating  disease that can lead to
the development of debilitating  and  life-threatening  cardiovascular  disease,
blindness,  kidney failure and neurologic  disorders.  Alanex  currently has two
programs for the discovery of new drugs to treat diabetes. Alanex has discovered
and is optimizing lead compounds in both programs. Both development programs are
being  conducted in  collaboration  with Novo  Nordisk  pursuant to an agreement
initiated in October 1995.  Under terms of the agreement,  Novo Nordisk provides
funding  for these  programs  in  exchange  for  exclusive  rights  to  products
identified  in the  collaboration.  In addition,  Alanex will receive  milestone
payments from Novo Nordisk upon the  achievement  of research and  developmental
benchmarks as well as royalty payments based on sales of any products discovered
through Alanex's technology.

Other

     Obesity

     Obesity  is  a  major  risk  factor  responsible  for  the  development  of
hypertension,  diabetes, degenerative joint disease, abnormal wound healing, and
other major medical problems.

     Neuropeptide  Y ("NPY") is a 36-amino  acid peptide that is involved in the
regulation of the cardiovascular,  immune and gastrointestinal systems. NPY is a
powerful known appetite
                                       11
<PAGE>


stimulant and has been  demonstrated to be present in abnormally high amounts in
the brains of obese animals. Alanex has discovered lead compounds that block NPY
feeding in several different  preclinical models of appetite  regulation.  These
compounds are currently being evaluated for their effects on feeding and obesity
in preclinical  models.  Alanex presently  retains all commercial  rights to any
compounds resulting from this program.

     Depression and Anxiety

     Depression  and anxiety  represent  major health  problems  throughout  the
world. Corticotropin releasing factor ("CRF") is a 41-amino acid peptide that is
synthesized in the brain and is released following stress.  Studies performed on
preclinical  models  and human  subjects  indicate  a  potential  role of CRF in
mediating depression and anxiety. Development of a potent, orally available drug
that  blocks  the  actions  of CRF  may be  useful  in the  treatment  of  these
indications.  Alanex has  discovered  lead  compounds  that are highly active on
specific  CRF  receptor  subtypes,  and  these  compounds  are  currently  being
optimized  and evaluated in  preclinical  models for their effects on depression
and anxiety.  Alanex  presently  retains all commercial  rights to any compounds
resulting from this program.

     GnRH Antagonist Program

     Gonadotropin   releasing   hormone   ("GnRH")  is  a  decapeptide  that  is
synthesized  in the brain and controls the pituitary  and gonadal  hormones that
regulate fertility.  In women, this peptide is required for successful ovulation
and, in men, it is necessary for spermatogenesis. Alanex is currently pursuing a
program to discover  orally  active small  molecule  drugs to treat two areas of
human  disease  that  depend  on GnRH  action -  endometriosis  and  sex-hormone
dependent  tumors.  Alanex  presently  retains  all  commercial  rights  to  any
compounds resulting from this program.

                                       12
<PAGE>


Business Relationships/Research and Development Agreements

     The Company has funded its research and development  primarily from working
capital  generated  from both private and public sales of its equity  securities
and corporate collaborative arrangements.  The Company has an ongoing program of
business  development which may, from time to time, lead to the establishment of
corporate collaborations in addition to those noted below.

     Roche

     In January  1997,  the  Company  and JT  granted  Roche  certain  exclusive
marketing  rights to  VIRACEPT  in  Europe  and other  countries  outside  North
America, Japan and Asia. For such rights, the Company received and recognized as
revenue in January 1997, an initial  license fee of  $9,000,000  and will,  upon
approval of VIRACEPT in Europe, receive an additional license fee of $11,000,000
and  subsequent  royalties  based  either on Roche's  sales of  VIRACEPT  or, in
certain circumstances, InviraseAE (saquinavir), Roche's HIV protease inhibitor.

     Subsequent  to the end of fiscal  1997,  the Company  and JT granted  Roche
certain exclusive  marketing rights to VIRACEPT in most Asian  territories.  For
such rights,  the Company received a license fee of $2,000,000  during the first
quarter of fiscal 1998 and will, upon approval in one of the Asian  territories,
receive an additional  license fee of  $1,000,000  and  subsequent  royalties as
described above.

     In June 1996,  Agouron  granted Roche worldwide  development  rights in two
anti-cancer  drugs  currently  being  developed  by the  Company  and  agreed to
collaborate with Roche on an additional  early-stage  anti-cancer drug discovery
program.  In return for rights to the Company's most advanced  anti-cancer  drug
(THYMITAQ) and an earlier stage anti-cancer  compound  (AG3340),  Roche has paid
$15,000,000 in initial license fees and has agreed to pay milestone  payments of
up to $40,000,000 and to bear 80% of the future  development  costs of these two
drugs. In North America, the Company and Roche will cooperatively market the two
drugs and will share  equally in resulting  profits.  Outside of North  America,
Roche will lead  commercialization  efforts and pay royalties to the Company or,
in certain  circumstances,  will share  profits  with the  Company.  For similar
commercial  rights to compounds  generated in a collaborative  research  program
focused on cyclin-dependent kinases (initially targeting the enzyme cdk4), Roche
is to provide  annual  research  support to the Company of $3,000,000 as well as
subsequent milestone payments of up to $20,000,000 and has agreed to bear 80% of
any  post-research  development  costs.  The  Company  also has a right in North
America to commercialize a Roche anti-cancer  product to be named in the future.
The Company received and recognized as revenue in June 1996, the initial license
payments of $15,000,000.

     Japan Tobacco Inc.

     In  December  1992,  the  Company  entered  into  an  agreement  with JT to
collaborate  on  the  discovery,  development  and  commercialization  of  novel
therapeutic  drugs which act on key proteins  related to the human immune system
("JT 1992"). In February 1994, the Company expanded its strategic  alliance with
JT into the field of anti-viral drugs for the treatment of infections  caused by
hepatitis C, cytomegalovirus, the herpes family of viruses and the
                                       13
<PAGE>


rhinoviruses ("JT 1994"). In December 1994, the Company added its anti-HIV drug,
VIRACEPT,  to the JT collaboration with the execution of a worldwide development
and  licensing  agreement  ("JT HIV").  In January 1995, JT 1992 was canceled by
mutual agreement and JT 1992 resources were reallocated to JT 1994 programs.  In
February  1996, JT 1994 was modified to delete  rhinoviruses  from the strategic
alliance.

     Under the  provisions  of JT 1994,  JT has agreed to make certain  research
payments  to the  Company  of not less than  $8,000,000  over a two year  period
ending December 1996. Such payments could approximate more than $21,000,000 over
a four year period if certain technical milestones are achieved. In addition, JT
made an up-front  payment of  $7,778,000,  which was amortized to revenue over a
twenty-four  month period.  Under the provisions of JT HIV, JT has made payments
of  $30,000,000  to Agouron  representing  initial  and  subsequent  payments of
$2,500,000,  $3,500,000 and $24,000,000.  Additional payments  representing JT's
share of VIRACEPT development costs have also been received. Agouron and JT will
ultimately share equally the costs of further development of VIRACEPT.

     Under the provisions of JT 1994, the Company will have exclusive  rights to
develop,    manufacture   and   market   anti-hepatitis   C,   anti-herpes   and
anti-cytomegalovirus drugs in the United States, Canada and Mexico. JT will have
exclusive rights to develop, manufacture and market these drugs in Japan, Taiwan
and South Korea. Outside the countries in which they respectively have exclusive
rights,  Agouron and JT will have co-exclusive  rights to manufacture and market
jointly developed anti-hepatitis C, anti-herpes and anti-cytomegalovirus  drugs.
Each company will pay royalties to the other based upon their  respective  sales
of  anti-hepatitis  C,  anti-herpes and  anti-cytomegalovirus  drugs.  Under the
provisions  of JT HIV,  Agouron  will  retain  exclusive  commercial  rights  to
VIRACEPT (with the right to sublicense,  subject to JT's right of first refusal)
in the United States,  Canada and Mexico.  JT was granted  exclusive  commercial
rights to VIRACEPT (with the right to sublicense,  subject to Agouron's right of
first  refusal)  in  Japan  and  certain  other  countries  in  Asia.  Exclusive
commercial  rights (with the right to  sublicense)  in Europe,  Asia and certain
other  countries in the world have been licensed by the Company and JT to Roche.
The  Company  and JT will  share  profits  and/or  royalties  equally  from  the
worldwide commercialization of VIRACEPT.

The  substantive  collaborations  of the Company's  newly acquired  wholly-owned
subsidiary, Alanex Corporation, are described below.

     Roche Bioscience

     In April  1997,  Alanex  and Roche  Bioscience  entered  into a  three-year
library  screening  and  license  agreement  under  which  Alanex  will  provide
compounds  from  its  exploratory  libraries  on a  nonexclusive  basis to Roche
Bioscience and anti-cytomegalovirus. The agreement provides for Roche Bioscience
to pay a  nonrefundable  fee of $1,000,000  which was received and recognized as
license fee revenue in May 1997.  Roche Bioscience is to pay $6,000,000 over the
three-year  period  during which library  compounds  are provided.  In addition,
Roche  Bioscience is obligated to make additional  payments upon the achievement
of certain milestones. Under the terms of the agreement, Roche Bioscience has an
option for an exclusive  royalty bearing license to active leads that arise from
the screening of the Alanex libraries.

                                       14
<PAGE>


     In June  1996,  Alanex  and  Roche  Bioscience  entered  into a  three-year
collaboration  agreement  targeting the treatment of pain.  Roche  Bioscience is
obligated to make certain  payments upon the achievement of defined  milestones.
In addition,  during the term of the agreement,  Roche Bioscience will provide a
minimum of $5,500,000  to support  research at Alanex.  The  agreement  provides
Roche Bioscience an exclusive  worldwide  license to commercialize any compounds
resulting  from the research  that is selected by Roche  Bioscience  for further
development  and to pay  royalties to Alanex on any sales of products  developed
from the collaboration.

     Novo Nordisk

     In  October  1995,  Alanex  and  Novo  Nordisk  entered  into a  three-year
collaboration  agreement for the  characterization of drugs for the treatment of
diabetes.  Novo Nordisk is obligated to provide up to  $4,500,000  of funding to
support  research  at  Alanex  in the  field  of the  collaboration  and to make
additional  payments to Alanex upon the achievement of certain  milestones.  The
agreement grants Novo Nordisk an option to obtain an exclusive worldwide license
to develop and  commercialize  any drug candidate arising from the collaboration
which they elect to pursue.  Alanex will  receive  royalties on the sales of any
such drug.

Competition

     The  pharmaceutical  and  biotechnology  industries  are subject to intense
competition and rapid and significant  technological  change. Many companies and
organizations,  including  major  pharmaceutical,   biotechnology  and  chemical
companies,  universities  and  other  research  organizations,  are  engaged  in
discovery and  development  of drugs for diseases  targeted by the Company.  For
example, the Company is aware of several pharmaceutical  companies that have HIV
protease inhibitors, some of which are currently being marketed, including those
of Abbott Laboratories,  Inc. ("Abbott"), Merck & Co., Inc. ("Merck") and Roche.
Certain companies and  organizations  have  substantially  greater financial and
other  resources,  larger  research and  development  staffs and more  extensive
production and marketing  organizations,  experience and  capabilities  than the
Company. In addition,  many companies have significantly greater experience than
the Company in preclinical  testing and in conducting  human clinical  trials of
potential  pharmaceutical products and in obtaining the FDA and other regulatory
approvals.  All of these companies and other research organizations compete with
the  Company  in  recruiting  and  retaining  highly  qualified  scientific  and
management personnel.

     Agouron  was the first  company  to devote  itself to the  development  and
application  of  protein  structure-based  drug  design.  As such,  the  Company
believes  that  it  has  achieved  certain  competitive   advantages   including
developmental  lead  time,  level  of  commitment  to  the  technology  and  the
development of certain practical or technical  capabilities.  However, in recent
years several pharmaceutical companies have undertaken to establish capabilities
in  protein  x-ray  crystallography,   either  internally  or  through  academic
collaborations,  and can be presumed to be engaged in the use of such technology
for the same  purposes as is the Company.  Certain  biotechnology  companies and
other companies have also entered into the field of protein structure-based drug
design. For example, Abbott,  NOVARTIS, Glaxo Wellcome plc ("Glaxo"),  Merck and
Roche have  developed  programs  focused on  structure-based  drug  design.  The
Company expects that the technology for protein structure-based drug design will
become more
                                       15
<PAGE>


widely  implemented  over time and will  ultimately  become  more  common in the
pharmaceutical industry.

     The Company believes that its ability to compete successfully will be based
on its  ability  to create  and  maintain  scientifically  advanced  technology,
attract and retain scientific personnel with a broad range of expertise,  obtain
patent  protection  or  otherwise  develop  proprietary  products or  processes,
conduct  clinical  trials and obtain required  government  approvals on a timely
basis,  select and pursue  drug design  projects  in areas in which  significant
market opportunities exist or are likely to develop, manufacture its products on
a cost-effective  basis and successfully  market its products either alone or in
conjunction with others.  Many of the Company's  competitors have  substantially
greater financial resources,  clinical and regulatory experience,  manufacturing
capabilities and sales and marketing organizations than Agouron.

     Currently, four HIV protease inhibitors are available in the United States.
FDA approval dates and estimated prescription market shares at June 30, 1997 are
noted in the following table:
<TABLE>
<CAPTION>

         COMPANY           PRODUCT NAME          GENERIC NAME            APPROVAL              MARKET SHARE
         <S>               <C>                   <C>                     <C>                   <C>

         Roche             INVIRASE(R)           saquinavir              December, 1995        23%
         Abbott            NORVIR(R)             ritonavir               March, 1996           13%
         Merck             CRIXIVAN(R)           indinavir               March, 1996           42%
         Agouron           VIRACEPT(R)           nelfinavir              March, 1997           22%
</TABLE>

     Future competition from new HIV protease  inhibitors is expected from Glaxo
and other pharmaceutical companies.

Patents and Trade Secrets

     The Company seeks patent  protection  for its  proprietary  technology  and
potential  products in the United States and in foreign  countries.  Most of the
Company's  products are expected to be synthetic chemical compounds which may be
afforded patent  protection  under principles and procedures well established by
the United States Patent and Trademark Office under United States patent law.

     The Company's  strategy is to pursue a strong patent  portfolio and Agouron
holds several patents,  including a patent covering the chemical  composition of
VIRACEPT.  The Company is currently  prosecuting a number of patent applications
in the United  States and in various  other  countries  seeking  protection  for
certain  series  of  compounds,   including   THYMITAQ,   VIRACEPT  and  certain
proprietary technology. The Company will continue to file patent applications on
its  evolving  technology,  processes  and  products.  The Company has  recently
received one United  States  patent  covering  processes of making  THYMITAQ and
related  compounds and  intermediates  thereof.  The Company's failure to obtain
patent protection for its products could have an adverse impact on the Company.

     Many  of the  processes  and  much of the  know-how  of  importance  to the
Company's technology are dependent upon the skills,  knowledge and experience of
its scientific and technical personnel,  which skills,  knowledge and experience
are not patentable.  To protect its rights in these areas,  the Company requires
all employees, significant consultants and advisors,
                                       16
<PAGE>


and collaborators to enter into confidentiality  agreements with Agouron.  There
can be no assurance,  however,  that these  agreements  will provide  meaningful
protection  for the  Company's  trade  secrets,  know-how  or other  proprietary
information  in the event of any  unauthorized  use or  disclosure of such trade
secrets, know-how or proprietary information.  Further, in the absence of patent
protection,  the Company may be exposed to competitors who independently develop
substantially  equivalent  technology or otherwise  gain access to the Company's
trade secrets, knowledge or other proprietary information.

Government Regulation

     The  production  and  marketing of the  Company's  products and its ongoing
research  and  development  activities  are  subject to  regulation  for safety,
efficacy and quality by numerous  governmental  authorities in the United States
and other  countries.  Pharmaceutical  products  intended for therapeutic use in
humans are principally  governed by the FDA regulations in the United States and
by comparable  government  regulations in foreign  countries.  Various  federal,
state and local statutes and  regulations  also govern or influence the research
and  development,  manufacturing,  safety,  labeling,  storage,  record keeping,
distribution  and  marketing  of  such  products.   The  process  of  completing
preclinical  and  clinical  testing and  obtaining  the  approval of the FDA and
similar  health  authorities  in foreign  countries to market a new drug product
requires  a  significant  number of years  and the  expenditure  of  substantial
resources.  Failures or delays by the Company or its  collaborators or licensees
in  obtaining  regulatory  approvals  would  adversely  affect the  marketing of
products  being  developed by the Company and the  Company's  ability to receive
product revenues or royalties.

     The steps required by the FDA before a new human pharmaceutical product may
be marketed in the United States include:  (a) preclinical  laboratory tests, in
vivo preclinical studies and formulation  studies; (b) the submission to the FDA
of a request for  authorization to conduct clinical trials on an IND, which must
become  effective  before human clinical  trials may commence;  (c) adequate and
well-controlled  human  clinical  trials to establish the safety and efficacy of
the drug for its  intended  use;  (d)  submission  to the FDA of a NDA;  and (e)
review and approval of the NDA by the FDA before the drug product may be shipped
or sold  commercially.  Prior to obtaining FDA approval for each  product,  each
manufacturing  establishment  for new drugs must be registered  with and receive
appropriate  approval by the FDA. If, after  receiving  approval from the FDA, a
material  change is made in the  manufacturing  process or location,  additional
regulatory review may be required.

     Preclinical  tests include  laboratory  evaluation of product chemistry and
formulation,  as well as animal studies to assess the safety and efficacy of the
product. Preclinical test results are submitted to the FDA as a part of the IND.
Clinical trials are typically conducted in three sequential phases, although the
phases may overlap. Phase I represents the initial administration of the drug to
a small group of humans,  either  healthy  volunteers  or patients,  to test for
safety, dosage tolerance,  absorption,  distribution,  metabolism, excretion and
clinical  pharmacology  and, if possible,  early  indications of  effectiveness.
Phase II  involves  studies  in a small  sample of the actual  intended  patient
population  to assess the  efficacy of the  investigational  drug for a specific
clinical indication,  to ascertain dose tolerance and the optimal dose range and
to collect  additional  clinical  information  relating to safety and  potential
adverse effects. Once an investigational drug is found to have some efficacy and
an acceptable clinical safety profile in the
                                       17
<PAGE>


targeted  patient  population,  Phase III studies are often initiated to further
establish safety and efficacy of the investigational drug in a broader sample of
the target patient population.  The results of the clinical trials together with
the results of the preclinical tests and complete manufacturing  information are
submitted in a NDA to the FDA for approval.

     If a NDA is  submitted  to the FDA,  there  can be no  assurance  that such
application  will be reviewed and approved by the FDA in a timely manner,  if at
all.  Even after  initial  FDA  approval  has been  obtained,  further  studies,
including   post-market   studies,   may  be  required  to  provide   additional
information.  Results  of such  post-market  programs  may limit or  expand  the
further  marketing  of the product,  or expose the Company to product  liability
claims.

     The Company is also subject to foreign  regulatory  requirements  governing
development, manufacturing and sales of pharmaceutical products that vary widely
from country to country. Approval of a drug by applicable regulatory agencies of
foreign  countries  must be secured prior to the marketing of such drug in those
countries.  The  regulatory  approval  process may be more or less rigorous from
country to country and the time  required  for approval may be longer or shorter
than that required in the United States.

     In  addition  to  the  regulatory  framework  for  pharmaceutical   product
approvals,  the  Company is and may become  subject to various  federal,  state,
local and foreign laws, regulations and recommendations relating to safe working
conditions,  laboratory and  manufacturing  practices,  the  experimental use of
animals  and  the  use  and  disposal  of  hazardous  or  potentially  hazardous
substances,  including radioactive compounds and infectious disease agents, used
in connection  with  Agouron's  research and  development  work.  The Company is
unable  to  predict  the  extent  of  restrictions  that  might  arise  from any
governmental or administrative action.

Manufacturing

     Agouron utilizes worldwide contract  manufacturing to produce VIRACEPT. The
Company  procures and transfers raw materials to contracted bulk drug producers,
sends the converted  bulk drug to a finishing  facility and moves finished goods
into a  distribution  center.  Product  supply and associated raw materials have
been  available  in adequate  quantities  to meet  business  needs.  In order to
accommodate  anticipated  sales volume growth,  capacity  expansion  efforts are
being pursued. The Company will be dependent upon its contract  manufacturers to
comply with good  manufacturing  practices  ("GMP")  and to meet its  production
requirements.   There  can  be  no  assurance   that  the   Company's   contract
manufacturers  will  timely  deliver  sufficient  quantities  of  the  Company's
products or that the Company would be able to find substitute manufacturers,  if
necessary.

Marketing

     The Company distributes  VIRACEPT in the United States through wholesalers.
Sales  volumes in the United  States are  influenced  by  underlying  demand and
wholesale inventory management practices.

     VIRACEPT  is covered by  Medicaid  programs in all states and is covered by
virtually all state AIDS Drug Assistance Programs ("ADAPs"). Currently, VIRACEPT
is paid predominately by
                                       18
<PAGE>


Medicaid,  private insurance and ADAPs. The Company offers a patient  assistance
program  based  upon  medical  need for  patients  who  have no  other  means of
coverage.

     The Company expects VIRACEPT to be commercially available in major European
markets in the first calendar quarter of 1998 and in Japan in the second quarter
calendar 1998.

     The  Company's   sales  and  marketing   efforts   utilize  a  field  sales
organization  which focuses primarily on office- and  hospital-based  physicians
including key medical thought  leaders.  Additionally,  the Company has obtained
market  access  and  availability  for its  products  in  part  by  establishing
relationships   within  key  market  segments   including   health   maintenance
organizations, third-party payers and governmental agencies.

Human Resources

     As of June 30, 1997, the Company had 708 employees,  138 of whom hold Ph.D.
or M.D.  degrees.  Four  hundred  seventy  seven  employees  are  engaged in, or
directly support, research and product development.  The Company's employees are
not covered by a collective  bargaining  agreement and the Company considers its
relations  with its  employees  to be  excellent.  The Company has entered  into
confidentiality agreements with all of its employees.


                                       19
<PAGE>


Item 2.       PROPERTIES

     At June 30, 1997, the Company leased  approximately  263,000 square feet of
office and laboratory space in the Torrey Pines and Sorrento Valley areas of San
Diego.

     The Company's corporate  headquarters and administrative  offices currently
comprise approximately 77,000 square feet under lease agreements which expire in
1999.

     Research and Development  activities are located in  approximately  186,000
square feet of leased  space under  agreements  which  expire from 1999 to 2004.
These  state-of-the-art  facilities are designed  specifically  to implement and
support  the  Company's  innovative  approach  to drug  design.  Included in the
facilities are approved  scale-up  laboratories in which kilogram  quantities of
Company-designed  drug compounds are  manufactured  under current GMP for use in
clinical trials.  Additionally,  the Company leases  approximately  1,000 square
feet  in  the  United  Kingdom  which  is  utilized  by  its  European  clinical
development staff.

Item 3.       LEGAL PROCEEDINGS

     The Company is involved in certain legal proceedings  generally  incidental
to its normal  business  activities.  While the outcome of any such  proceedings
cannot be  accurately  predicted,  the Company  does not  believe  the  ultimate
resolution of any such existing matters should have a material adverse effect on
its financial position or results of operations.

Item 4.       SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     No matters were submitted  during the fourth quarter of the year ended June
30, 1997 to a vote of the Company's security holders.

                                       20
<PAGE>


                                     PART II


Item 5.       MARKET FOR THE REGISTRANTS' COMMON EQUITY AND RELATED STOCKHOLDER
              MATTERS

     The  Company's  common stock is traded in the  over-the-counter  market and
prices  are  quoted on The  Nasdaq  Stock  Market  under the  symbol  AGPH.  The
following  table sets forth the high and low  selling  prices as reported by The
Nasdaq Stock Market for the periods indicated.
<TABLE>
<CAPTION>
                                                                             High              Low
                                                                           ---------        ---------
<S>                                                                        <C>               <C>

1996

         First Quarter                                                     $  39.250        $  22.750
         Second Quarter                                                       35.875           22.500
         Third Quarter                                                        47.625           32.750
         Fourth Quarter                                                       47.000           32.000

1997

         First Quarter                                                     $  46.250       $   29.000
         Second Quarter                                                       71.500           42.250
         Third Quarter                                                       101.000           67.000
         Fourth Quarter                                                       91.000           58.375
</TABLE>


     On August 15,  1997,  the closing  price of the  Company's  common stock as
reported  by The  Nasdaq  Stock  Market  was  $94.0625  per  share.  There  were
approximately  12,000 shareholders of the common stock of the Company as of such
date.  The Company has not paid cash  dividends on its common stock and does not
intend to do so in the foreseeable future.

     On July 30, 1997, the Company's  Board of Directors  approved a two-for-one
stock split in the form of a special stock dividend of one share of common stock
for each share of the Company's common stock outstanding. The record date of the
transaction  is August  15,  1997 and the  distribution  date will be August 26,
1997.



                                       21
<PAGE>


Item 6.       SELECTED CONSOLIDATED FINANCIAL DATA

     The following table summarizes certain selected consolidated financial data
for each of the five years in the period  ended June 30, 1997.  The  information
presented  should  be  read  in  conjunction  with  the  consolidated  financial
statements included elsewhere in this report.
<TABLE>
<CAPTION>

(In thousands, except                 Years ended
per share amounts)                    June 30,          1997         1996         1995         1994         1993
- ----------------------------------------------------------------------------------------------------------------
<S>                                                 <C>          <C>          <C>          <C>           <C>

Statement of Operations:
     Total revenues                                 $132,063     $ 55,955     $ 26,722     $ 16,301     $  8,266
     Product sales                                    56,969            0                         0            0
     Net loss                                        (42,806)*    (19,523)     (12,939)      (9,462)      (9,829)
     Net loss per common share                     $  (3.18)     $  (1.98)    $  (1.77)     $ (1.31)     $ (1.40)
     Shares used in computing net
          loss per common share                       13,473        9,844        7,296        7,241        6,997

     To give effect for 2-for-1 stock
         split declared on July 30, 1997
         (unaudited):

     Pro-forma net loss per common share          $    (1.59)    $   (.99)    $   (.89)     $  (.66)     $  (.70)
     Shares used in computing pro-forma net
       loss per common share                          26,946       19,688       14,592       14,482       13,994

Balance Sheet:
     Working capital                                $115,786     $ 70,381     $  8,837     $ 21,039      $29,933
     Total assets                                    266,914      102,577       27,097       37,178       41,721
     Long-term liabilities                             7,217        1,734        1,884        2,285        2,613
     Stockholders' equity #                          191,282       75,583       12,591       24,852       33,757
</TABLE>

     *   Includes  the  write-off  of  $57,500,000   of  in-process   technology
         associated with the acquisition of Alanex Corporation, partially offset
         by the  realization of  $43,800,000  of deferred tax assets  associated
         with the Company's expectation of future taxable income.

     #   The Company has never declared or paid cash dividends on its common
         stock.
                                       22
<PAGE>

Item 7.  MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF FINANCIAL  CONDITION AND
         RESULTS OF OPERATIONS

Overview

     This discussion contains forward-looking statements and such statements are
subject to certain risks and  uncertainties  which could cause actual results to
differ  materially  from  those  projected.  See  "Important  Factors  Regarding
Forward-Looking  Statements"  attached  as  Exhibit 99 to the  Company's  annual
report on Form 10-K for the year ended June 30, 1997.  Readers are cautioned not
to place undue reliance on these forward-looking  statements which speak only as
of the date hereof. The Company undertakes no obligation to publicly release the
result of any revisions to these forward-looking statements which may be made to
reflect  events  or  circumstances  after  the date  hereof  or to  reflect  the
occurrence of unanticipated events.

     The Company  has been  engaged in the  research  and  development  of human
pharmaceuticals   utilizing  protein   structure-based  drug  design  since  its
inception in 1984.  Such research and  development  has been funded  principally
from the  Company's  equity-derived  working  capital and through  collaborative
arrangements  with other companies.  The Company's net operating losses incurred
since inception are primarily a result of the Company's independent research and
development  activities  and  an  investment  in  the  clinical  and  commercial
development of its two leading  compounds in cancer and AIDS. Net losses for the
fiscal years ended June 30, 1997,  1996 and 1995 were  $42,806,000,  $19,523,000
and $12,939,000.  In March 1997, the Company  received  approval from the United
States Food and Drug  Administration  (the FDA) to market  VIRACEPT  (nelfinavir
mesylate,  an HIV  protease  inhibitor)  in the  United  States.  For the fourth
quarter of fiscal 1997, due principally to the increasing  product  contribution
from  VIRACEPT  sales and before the  application  of the one-time  write-off of
$57,500,000  associated with the acquisition of Alanex  Corporation  ("Alanex"),
the Company  realized a pre-tax  profit of $3,201,000.  It is  anticipated  that
product sales will  continue to increase  from quarter to quarter  during fiscal
1998  and  the  Company  should  be  profitable  for  fiscal  1998.  It is  also
anticipated that the Company may be profitable in each quarter of fiscal 1998.

Results of Operations

     Product sales

     In March 1997,  the Company  received  clearance from the FDA to market its
anti-HIV drug,  VIRACEPT.  Product sales for the period ended June 30, 1997 were
approximately  $57,000,000.  VIRACEPT is one of four  FDA-approved  HIV protease
inhibitors  which,  when used in combination with other anti-HIV drugs (commonly
referred to as a "cocktail"),  have become the preferred method for treating HIV
infected  patients in the United  States.  Market demand is expected to increase
for protease inhibitors as combinations  containing these drugs are increasingly
prescribed  for  patients  with   earlier-stage   HIV  infection.   The  Company
anticipates that future product sales of VIRACEPT will increase accordingly.


                                       23
<PAGE>


     Contract revenues, license fees

     Collaborative  research and development  agreements with Japan Tobacco Inc.
("JT"),  Hoffmann-La  Roche Inc.  and F.  Hoffmann-La  Roche Ltd.  (collectively
"Roche")  and  Syntex  (U.S.A.)  Inc.  accounted  for  substantially  all of the
Company's  total contract and license  revenues for 1997,  1996 and 1995.  Total
contract and license revenues for 1997 increased approximately 34% over 1996 due
mainly to increased program activity and spending on the JT  collaborations  and
an initial license payment from Roche for certain  marketing rights to VIRACEPT.
The increase in contract and license revenues from 1995 to 1996 of approximately
109% was due  principally  to the  effect of a full year of  increasing  program
activities on the anti-HIV  collaboration  with JT (initiated in December  1994)
and the initial  payments  associated with a collaboration  (June 30, 1996) with
Roche. The Company anticipates that contract revenue and license fees for fiscal
1998 will approximate the amounts recorded in fiscal 1997.

     Cost of product sales

     The  aggregate  cost of product  sales as a percentage of product sales was
approximately  43% for the period ended June 30, 1997.  The Company  anticipates
that gross margins will improve as product  sales  volumes  increase and certain
manufacturing  process and scale  efficiencies  are  realized.  Aggregate  gross
margins will also be impacted by the size of the  Company's  patient  assistance
program,  the Company's  manufacturing supply agreement with Roche and the level
of sales  subject  to  Medicaid  and other  discounts  or  rebates in the United
States.

     Research and development

     Research and development  spending increased by approximately 52% from 1996
to 1997 due  generally to  increasing  average  research and  development  staff
levels (approximately 39%) and staff-related expenditures (including occupancy),
increased  expenditures in support of human clinical trials,  an expanded access
program  associated with VIRACEPT and increased  expenditures for clinical trial
activities  associated with THYMITAQo  (nolatrexed  dihydrochloride) and AG3340.
Research and development  spending  increased by approximately  96% from 1995 to
1996 due generally to increasing  average research and development  staff levels
(approximately 23%) and staff-related  expenditures and significantly  increased
expenditures  for human clinical trial  activities  associated with VIRACEPT and
THYMITAQ. Collaborator-funded program expenditures representing 84%, 72% and 65%
of total research and development  expenses in 1997, 1996 and 1995,  generated a
significant majority of the increases in research and development expenses.  The
Company's self-funded research and development programs generated  approximately
16%, 28% and 35% of total research and  development  expenses in 1997,  1996 and
1995. The Company  anticipates  that total research and development  expenses in
fiscal 1998 will exceed fiscal 1997 expenses by approximately 10%.

     Selling, general and administrative

     Selling, general and administrative expenses represented  approximately 24%
of total operating  expenses  (excluding the cost of product sales and write-off
of  in-process  technology  purchased) in 1997 and 11% in each of 1996 and 1995.
Spending  increases from 1996 to 1997 are due chiefly to increasing staff levels
(approximately 214%) and staff-related expenditures,
                                       24
<PAGE>


certain  premarketing  and advertising  and promotion costs  associated with the
launch of VIRACEPT in March 1997 and other costs associated with a growing sales
and  marketing  infrastructure.  Spending  increases  from  1995 to 1996 are due
principally  to  increasing  average  staff  levels   (approximately   38%)  and
staff-related  expenditures  including occupancy.  Also contributing to the 1996
increase  are  certain  costs  associated  with a growing  sales  and  marketing
infrastructure.   The  Company  anticipates  that  total  selling,  general  and
administrative expenses will increase in fiscal 1998 due to the full-year effect
of fiscal 1997 staff additions, additional occupancy costs, increasing sales and
marketing activities and the support of VIRACEPT Phase IV marketing studies.

     Royalties

     Pursuant to the terms of the  VIRACEPT  Development  and License  Agreement
with JT, the Company  anticipates  that  royalty  expense in fiscal 1998 will be
significant. Royalties in fiscal 1997 were not significant.

     Write-off of in-process technology purchased

     In  the  fourth  quarter  of  fiscal  1997,  the  Company  acquired  Alanex
Corporation  ("Alanex"),  a research  company  engaged in the  discovery of drug
leads through the high-speed screening of diverse chemical libraries designed by
computational  methods and  generated  by  combinatorial  chemistry.  Alanex was
acquired in a purchase transaction through the issuance,  or potential issuance,
of  approximately  996,000  shares  of the  Company's  common  stock  valued  at
approximately  $61,000,000,  plus $1,300,000 of related  acquisition  costs. The
purchase  price was  allocated  to various  tangible and  intangible  assets and
either  capitalized   (approximately   $4,800,000)  or  expensed  (approximately
$57,500,000) as in-process  technology based on an independent  valuation of the
Alanex assets, technology and research programs at the date of acquisition.

     Interest and other income

     Interest  income  increased  by  approximately  23%  from  1996 to 1997 due
principally to a higher average investment  portfolio balance resulting from the
July 1996 public  offering,  receipt of a total of  $24,000,000  in license fees
from Roche (June 1996 and January 1997), significantly increased funding from JT
and Roche and the exercise of employee stock options.  Interest income increased
from 1995 to 1996 due to a higher average investment portfolio balance resulting
from the receipt of a  $24,000,000  payment  from JT in August 1995 and a public
offering of common stock in September 1995. The Company anticipates that, absent
additional  revenue sources or a significant  change in interest  rates,  fiscal
1998 interest income will be less than that of fiscal 1997.

     Interest expense

     Interest expense decreased in 1997 by approximately 38% due to a decreasing
level of debt and capital lease obligations from year to year.  Interest expense
decreased  in  1996  due  to a  decreasing  level  of  debt  and  capital  lease
obligations  but  such  decrease  was  totally  offset  by  the  exercise  costs
associated with certain lease buy-out options.


                                       25
<PAGE>


     Income tax provision (benefit)

     Based on its fourth  quarter  pre-tax profit  (excluding the  non-recurring
charge  associated  with the  acquisition of Alanex) and its estimates of future
taxable  income,  the Company  believes that it is more likely than not that its
deferred tax assets  (comprised  mostly of net operating loss  carryforwards and
research  credits)  will be realized  and has  therefore  recorded  the full tax
benefit of its deferred tax assets as of June 30, 1997.  An income tax provision
representing  approximately 40% of any future pre-tax net income will be made on
a quarterly basis.

Liquidity and Capital Resources

     Historically,  the Company has relied  principally on equity financings and
corporate  collaborations  to fund  its  operations  and  capital  expenditures.
However,  on March 14,  1997,  the Company  received  clearance  from the FDA to
market its anti-HIV drug, VIRACEPT.  Fiscal 1997 sales of VIRACEPT since its FDA
approval have resulted in a gross margin of $32,370,000. The Company anticipates
that net sales of VIRACEPT will steadily  increase  through at least fiscal 1998
and  provide  an  increasingly   significant  contribution  toward  funding  the
Company's operations.

     At June 30,  1997,  the Company had net  working  capital of  approximately
$115,786,000,  an  increase  of  $45,405,000  over  June  30,  1996  levels  due
principally to the  commercialization of VIRACEPT and the resultant increases in
inventory  ($58,800,000),  trade accounts receivable  ($26,055,000) and accounts
payable  ($22,174,000).  It is anticipated that these working capital components
and cash and short-term  investments will continue to be significantly  impacted
as VIRACEPT  sales  increase.  At June 30,  1997,  the  Company  had cash,  cash
equivalents and short-term investments of approximately $91,317,000. The Company
believes that its current capital resources,  existing  contractual  commitments
and anticipated  VIRACEPT product sales  contribution are sufficient to maintain
its current  operations  through  fiscal  1998.  This belief is based on current
research  and  clinical   development   plans,   anticipated   working   capital
requirements  associated with the expanding  commercialization of VIRACEPT,  the
current  regulatory   environment,   historical   industry   experience  in  the
development of therapeutic drugs and general economic conditions.

     The Company believes that additional  financing may be required to meet the
planned operating needs after fiscal 1998 if significant positive cash flows are
not  generated  from  commercial  activities.   Such  needs  would  include  the
expenditure of substantial funds to continue and expand research and development
activities,  conduct existing and planned preclinical studies and human clinical
trials and to support the increasing  working capital  requirements of a growing
commercial   infrastructure   including   manufacturing,   sales  and  marketing
capabilities.  As a result,  the  Company  may be  required  to  pursue  various
financing  alternatives  such  as  commercial  lines  of  credit,  collaborative
arrangements and additional  public  offerings or private  placements of Company
securities.  If such alternatives are not available, the Company may be required
to  defer  or  restrict  certain  commercial  activities,   delay  or  eliminate
expenditures  for certain of its  potential  products  under  development  or to
license third parties to commercialize products or technologies that the Company
would otherwise seek to develop or commercialize itself.

                                       26
<PAGE>


Capital Expenditures

     During  1997,  capital   expenditures  totaled  $14,727,000  compared  with
$3,710,000 and $2,032,000  during 1996 and 1995, of which  $2,355,000,  $457,000
and $17,000  were  financed  through  capital  lease  obligations.  Of the total
capital  expenditures  during  1997,  1996 and 1995,  approximately  $4,728,000,
$318,000 and $130,000  represented  leasehold  improvement costs associated with
certain  of the  Company's  facilities.  With  the  exception  of the  leasehold
improvement costs,  virtually all of the capital  expenditures during 1997, 1996
and  1995   represented   laboratory   and  office   equipment  and   scientific
instrumentation  necessary to support an expanding  research,  development,  and
commercial infrastructure.

     Capital   expenditures   during  1998  are  expected  to  be  approximately
$14,000,000 to support  continued  product  commercialization,  development  and
research  activities.  Of the total expected capital  expenditures  during 1998,
approximately  $5,000,000  is  associated  with  the  leasehold  improvement  of
existing and  anticipated  new  administrative  and laboratory  facilities.  The
Company  may  utilize  lease  or debt  financing  for  certain  expenditures  if
available on acceptable terms.

                                       27
<PAGE>


Item 8.       FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO FINANCIAL STATEMENTS AND SCHEDULES                                PAGE
- --------------------------------------------                               ----

Report of Independent Accountants                                           F-1

Consolidated Balance Sheet as of June 30, 1997 and 1996                     F-2

Consolidated Statement of Operations for the years ended                    F-3
           June 30, 1997, 1996 and 1995

Consolidated Statement of Stockholders' Equity for the
           years ended June 30, 1997, 1996 and 1995                         F-4

Consolidated Statement of Cash Flows for the years ended
           June 30, 1997, 1996 and 1995                                     F-5

Notes to Consolidated Financial Statements                                  F-6

NOTE:  All schedules are omitted  because they are not  applicable,  or not
       required,  or because the required  information is included in the
       consolidated financial statements or notes thereto.
                                       28
<PAGE>


                                    

REPORT OF INDEPENDENT ACCOUNTANTS


To the Board of Directors and Stockholders of Agouron Pharmaceuticals, Inc.

In our opinion,  the  accompanying  consolidated  balance  sheet and the related
consolidated statements of operations, of stockholders' equity and of cash flows
present  fairly,  in all material  respects,  the financial  position of Agouron
Pharmaceuticals,  Inc.  and its  subsidiary  at June 30, 1997 and 1996,  and the
results of their  operations and their cash flows for each of the three years in
the period ended June 30, 1997, in conformity with generally accepted accounting
principles.  These financial  statements are the responsibility of the Company's
management;  our  responsibility  is to express  an  opinion on these  financial
statements  based on our audits.  We conducted our audits of these statements in
accordance with generally accepted auditing standards which require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements,  assessing the accounting  principles used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for the opinion  expressed
above.



/s/ PRICE WATERHOUSE LLP

San Diego, California
July 30, 1997





                                       F-1
<PAGE>


AGOURON PHARMACEUTICALS, INC.

CONSOLIDATED BALANCE SHEET
(Dollars in thousands)
<TABLE>
<CAPTION>

ASSETS
                                                                                           June 30,
                                                                                -----------------------------
Current assets:                                                                       1997              1996
                                                                                ----------       -----------
<S>                                                                             <C>              <C>
       Cash and cash equivalents                                                $   52,484       $    16,451
       Short-term investments                                                       38,833            74,424
       Accounts receivable, net                                                     31,375             2,966
       Inventories                                                                  58,800                 0
       Current deferred tax assets                                                     500                 0
       Other current assets                                                          2,209             1,800
                                                                                ----------       -----------

       Total current assets                                                        184,201            95,641

Property and equipment, net                                                         22,613             6,936

Deferred tax assets                                                                 56,000                 0

Purchased intangibles                                                                4,100                 0
                                                                                ----------       -----------

                                                                                $  266,914       $   102,577
                                                                                ==========       ===========

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
       Accounts payable                                                         $   28,833       $     6,659
       Accrued liabilities                                                           8,889             4,327
       Deferred revenue                                                             27,567            13,788
       Current deferred tax liabilities                                                600                 0
       Current portion of long-term debt                                             2,526               486
                                                                                ----------       -----------

       Total current liabilities                                                    68,415            25,260
                                                                                ----------       -----------

Long-term liabilities:
       Long-term debt, less current portion                                          5,940               501
       Accrued rent                                                                  1,277             1,233
                                                                                ----------       -----------

       Total long-term liabilities                                                   7,217             1,734
                                                                                ----------       -----------

Stockholders' equity:
       Common stock, no par value, 75,000,000 shares authorized,
           14,714,960 and 10,731,687 shares issued and outstanding                 317,133           158,628
       Accumulated deficit                                                        (125,851)          (83,045)
                                                                                ----------       -----------

       Total stockholders' equity                                                  191,282            75,583
                                                                                ----------       -----------

Commitments (Note 8)

                                                                                $  266,914       $   102,577
                                                                                ==========       ===========
</TABLE>

See accompanying notes to consolidated financial statements.

                                       F-2
<PAGE>


AGOURON PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENT OF OPERATIONS
(In thousands, except per share amounts)
<TABLE>
<CAPTION>

                                                                          Years ended June 30,
                                                              --------------------------------------------
                                                                       1997           1996            1995
                                                              -------------  -------------   -------------
<S>                                                           <C>            <C>             <C>          

Revenues:
     Product sales                                            $      56,969  $           0   $           0
     Contract                                                        65,094         40,955          26,722
     License fees                                                    10,000         15,000               0
                                                              -------------  -------------   -------------

                                                                    132,063         55,955          26,722
                                                              -------------  -------------   -------------
Operating expenses:
     Cost of product sales                                           24,599              0               0
     Research and development                                       108,137         71,010          36,317
     Selling, general and administrative                             32,941          8,082           3,494
     Write-off of in-process technology purchased                    57,500              0               0
                                                              -------------  -------------   -------------

                                                                    223,177         79,092          39,811
                                                              -------------  -------------   -------------

Operating loss                                                      (91,114)       (23,137)        (13,089)
                                                              -------------  -------------   -------------

Other income (expense):
     Interest and other income                                        5,873          4,776           1,239
     Interest expense                                                  (142)          (228)           (225)
                                                              -------------  -------------   -------------

                                                                      5,731          4,548           1,014
                                                              -------------  -------------   -------------

Loss before income taxes                                            (85,383)       (18,589)        (12,075)

Income tax provision (benefit)                                      (42,577)           934             864
                                                              -------------  -------------   -------------

Net loss                                                      $     (42,806) $     (19,523)  $     (12,939)
                                                              =============  =============   =============

Net loss per common share                                     $       (3.18) $       (1.98)  $       (1.77)
                                                              =============  =============   =============

Shares used in computing net loss per common share                   13,473          9,844           7,296
                                                              =============  =============   =============


To give effect for 2-for-1 stock split declared on
 July 30, 1997 (unaudited):

Pro-forma net loss per common share                           $       (1.59) $        (.99)  $        (.89)
                                                              =============  =============   =============

Shares used in computing pro-forma net loss per
  common share                                                       26,946         19,688          14,592
                                                              =============  =============   =============


</TABLE>


See accompanying notes to consolidated financial statements.



                                       F-3
<PAGE>


AGOURON PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
(Dollars in thousands)
<TABLE>
<CAPTION>


                                                  Common Stock            
                                        -------------------------------      Accumulated  
                                               Shares            Amount          Deficit             Total
                                        -------------     -------------    -------------     -------------    
<S>                                         <C>           <C>              <C>               <C>

Balance at June 30, 1994                    7,278,488     $      75,435    $     (50,583)    $      24,852

   Stock issuances:
     Exercise of stock options                 49,125               382               --               382
     Employee stock purchase plan              31,669               296               --               296
   Net loss                                        --                --          (12,939)          (12,939)
                                        -------------     -------------    -------------     -------------

   Balance at June 30, 1995                 7,359,282            76,113          (63,522)           12,591

   Stock issuances:
     Public sale                            3,000,000            78,579               --            78,579
     Exercise of stock options                293,206             2,990               --             2,990
     Exercise of stock warrants                45,000               283               --               283
     Employee stock purchase plan              34,199               663               --               663
   Net loss                                        --                --          (19,523)          (19,523)
                                        -------------     -------------    -------------     -------------

Balance at June 30, 1996                   10,731,687           158,628          (83,045)           75,583

   Stock issuances:
     Public sale                            2,735,000            77,245               --            77,245
     Acquisition of Alanex                    722,118            61,051               --            61,051
     Exercise of stock options                490,236             6,720               --             6,720
     Employee stock purchase plan              35,919             1,389               --             1,389
   Tax benefit of stock options exercised          --            12,100               --            12,100
   Net loss                                        --                --          (42,806)          (42,806)
                                        -------------     -------------    -------------     -------------

Balance at June 30, 1997                   14,714,960     $     317,133    $    (125,851)    $     191,282
                                        =============     =============    =============     =============


</TABLE>

See accompanying notes to consolidated financial statements.


                                       F-4
<PAGE>


AGOURON PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENT OF CASH FLOWS
(Dollars in thousands)
<TABLE>
<CAPTION>

                                                                                   Years ended June 30,
                                                                      ------------------------------------------
                                                                              1997           1996           1995
                                                                      ------------    -----------    -----------
<S>                                                                    <C>            <C>            <C>    

Cash flows from operating activities:
     Cash received from product sales, contracts and licenses          $   116,692    $    61,376    $    25,633
     Cash paid to suppliers, employees and service providers              (195,890)       (73,738)       (34,113)
     Interest received                                                       5,873          4,776          1,239
     Interest paid                                                            (142)          (228)          (225)
                                                                       -----------    -----------    -----------

     Net cash provided (used) by operating activities                      (73,467)        (7,814)        (7,466)
                                                                       -----------    -----------    -----------

Cash flows from investing activities:
     Proceeds from maturities/sales of short-term investments              127,501         59,686         18,000
     Purchases of short-term investments                                   (91,227)      (118,224)        (6,129)
     Purchase of  property and equipment                                   (12,372)        (3,252)        (1,978)
     Cost to acquire Alanex, net of cash acquired                              608              0              0
                                                                       -----------    -----------    -----------

     Net cash provided (used) by investing activities                       24,510        (61,790)         9,893
                                                                       -----------    -----------    -----------

Cash flows from financing activities:
     Net proceeds from issuance of common stock                             85,354         82,515            678
     Principal payments under equipment leases                                (394)          (373)          (613)
     Increase (decrease) in long-term debt, net                                 30           (445)          (238)
                                                                       -----------    -----------    -----------

     Net cash provided (used) by financing activities                       84,990         81,697           (173)
                                                                       -----------    -----------    -----------

Net increase (decrease) in cash and cash equivalents                        36,033         12,093          2,254
Cash and cash equivalents at beginning of year                              16,451          4,358          2,104
                                                                       -----------    -----------    -----------

Cash and cash equivalents at end of year                               $    52,484    $    16,451    $     4,358
                                                                       ===========    ===========    ===========

Reconciliation of net loss to net cash provided (used) 
  by operating activities:
     Net loss                                                          $   (42,806)   $   (19,523)   $   (12,939)
     Depreciation and amortization                                           3,910          2,411          2,455
     Write-off of in-process technology purchased                           57,500              0              0
     Change in deferred tax assets                                         (43,800)             0              0
     Net (increase) decrease in inventory                                  (58,547)             0              0
     Net (increase) decrease in accounts receivable and other
     current assets                                                        (28,209)        (1,198)             4
     Net increase (decrease) in accounts payable, accrued
     liabilities, deferred revenue and other liabilities                    38,485         10,496          3,014
                                                                       -----------    -----------    -----------

Net cash provided (used) by operating activities                       $   (73,467)   $    (7,814)   $    (7,466)
                                                                       ===========    ===========    ===========
</TABLE>

See accompanying notes to consolidated financial statements.

                                       F-5
<PAGE>


AGOURON PHARMACEUTICALS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


Note 1 - The Company and its significant accounting policies

     The Company

     Agouron Pharmaceuticals, Inc. ("Agouron" or the "Company") was incorporated
in the state of California on June 22, 1984 and is an integrated  pharmaceutical
company committed to the discovery, development,  manufacturing and marketing of
small molecule drugs  engineered to inactivate  proteins which play key roles in
cancer, AIDS, and other serious diseases. The Company, through its own sales and
marketing force, is currently marketing  VIRACEPTAE  (nelfinavir  mesylate),  an
inhibitor  of the HIV  protease,  which was cleared for  marketing by the United
States Food and Drug  Administration  ("FDA") in March 1997. The Company intends
to commercialize any subsequently  developed  products through its own sales and
marketing force in certain markets or, when appropriate,  through  manufacturing
and marketing relationships with other pharmaceutical companies.

     Principles of consolidation

     The consolidated  financial  statements include the accounts of the Company
and its wholly-owned subsidiary,  Alanex Corporation ("Alanex"),  the results of
which are reflected  since its acquisition in a purchase  transaction  valued at
approximately   $62,300,000.   All   significant   intercompany   accounts   and
transactions have been eliminated.

     Estimates

     The  preparation  of financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that affect the reported amounts of assets,  liabilities,  revenues
and expenses and related disclosures as of the date of the financial statements.
Actual results could differ from such estimates.

     At June 30, 1997, it has been assumed that the existing collaborations with
Japan Tobacco Inc. ("JT") and Hoffmann-La  Roche Inc. and F.  Hoffmann-La  Roche
Ltd ("Roche") will continue in accordance with their  agreement  terms. As such,
approximately  $23,737,000  of  cash  received  from JT and  $3,000,000  of cash
received  from  Roche  have  been  classified  as  deferred   contract  revenue.
Approximately  $22,300,000 of the cash received from JT represents  JT's advance
of the Company's VIRACEPT  development funding obligation through December 1997.
Such  amounts  are to be repaid by the Company  out of future  profits,  if any,
generated by sales of VIRACEPT in the United States. The balance of the payments
from JT and  Roche  are  non-refundable  and are being  recognized  as  contract
revenue on a prospective  basis generally as collaborative  program expenses are
incurred.  Should any of the underlying  collaborations be terminated in advance
of  their  contract  terms,  any  deferred  contract  revenues  related  to such
collaborations would immediately be recognized as revenue by the Company.


                                       F-6
<PAGE>


     Cash and cash equivalents

     The Company  considers cash equivalents to be only those  investments which
are highly  liquid,  readily  convertible  to cash and which mature within three
months from date of purchase.  Included in cash and cash equivalents at June 30,
1997 is $2,000,000  which has been pledged as collateral for certain  commercial
letters of credit.

     Short-term investments

     Short-term  investments  consist  principally  of  government or government
agency securities,  corporate notes and bonds, commercial paper and certificates
of deposit with original  maturities of three to thirty-six  months. The Company
has  classified its short-term  investments as  available-for-sale.  Included in
short-term  investments  at June 30, 1997 and 1996 is $588,000 and $1,156,000 of
accrued interest receivable.

     Inventories

     Inventories  are stated at the lower of cost or market.  Cost is determined
using the first-in, first-out method.

     Concentration of credit and market risk and off balance sheet risk

     The Company  invests its excess cash  principally in marketable  securities
from a diversified  portfolio of institutions with strong credit ratings and, by
policy,  limits  the amount of credit  exposure  at any one  institution.  These
investments  are generally not  collateralized  and primarily  mature within one
year. The Company has not realized any material losses from such  investments in
1997, 1996 or 1995.

     Financial instruments and risk management

     The  Company  has  contract  manufacturing  operations  in Europe and Asia.
Accordingly,  the Company from  time-to-time  enters into  forward  contracts to
manage its exposure to fluctuations in foreign currency  exchange rates. At June
30, 1997, the Company had several forward contracts with maturities of less than
three  months to  purchase  Japanese  yen for  approximately  $4,095,000.  These
contracts are  designated  and effective as hedges and,  accordingly,  gains and
losses are  recognized  in the same  period the  offsetting  gains and losses of
hedged transactions are realized and recognized.


                                       F-7
<PAGE>


     Property and equipment

     Property and equipment is recorded at cost.  Depreciation is computed using
principally  the  straight-line  method over estimated  useful lives of three to
five years. Leasehold improvements are amortized over the life of the lease.

     Purchased intangibles

     In conjunction  with the  acquisition  of Alanex,  the Company has recorded
purchased intangibles (primarily drug discovery technology and chemical compound
libraries)  which  are being  amortized  on a  straight-line  basis  over  their
estimated useful lives of seven years.

     Product sales

     In March 1997,  the Company  received  clearance from the FDA to market its
anti-HIV drug, VIRACEPT.  The Company has the exclusive right to market VIRACEPT
in North America.  Accordingly, in March, the Company began shipping VIRACEPT to
wholesalers  throughout the United States.  The Company recognizes sales revenue
upon shipment.  Sales are reported net of discounts,  rebates,  chargebacks  and
product returns.

     Also  included  in  product  sales are  sales  (at cost plus  contractually
determined  mark-ups) to Roche of clinical and  commercial  drug  supplies to be
used by Roche in its licensed  territory.  The Company will receive a royalty on
Roche's subsequent commercial sales of such supplies.

     Contract revenues

     Contract revenues are earned and recognized  generally as contract research
costs are incurred according to the provisions of each collaborative  agreement.
Amounts  received in advance of  performance  are recorded as deferred  revenue.
Contract  milestone  payments are  recognized as revenues upon the completion of
the milestone event or requirement.

     License fees

     License fees are  recognized as revenue when earned as generally  evidenced
by  certain  factors  including:  receipt  of  such  fees,  satisfaction  of any
performance obligations and the non-refundable nature of such fees.

     Research and development costs

     Research and development costs are expensed in the period incurred.


                                       F-8
<PAGE>


     Income tax provision (benefit)

     The  Company  records a  provision  (benefit)  for income  taxes  using the
liability method.  Current income tax expense (benefit)  generally is the amount
of income taxes expected to be payable for the current year.  Deferred taxes are
recorded by applying  applicable tax rates to cumulative  temporary  differences
based on when and how they are expected to affect the tax return.

     Stock-based compensation plans

     As  permitted  by  Statement  of  Financial  Accounting  Standards  No. 123
"Accounting for Stock-Based  Compensation"  ("FAS 123"), the Company has elected
to continue to account for stock  options and  stock-based  awards in accordance
with  APB  Opinion  No.  25  ("Accounting   for  Stock  Issued  to  Employees").
Accordingly,  the  Company  has  provided  in Note 7 the  pro-forma  disclosures
required by FAS 123.

     Statement of cash flows

     For purposes of the Statement of Cash Flows,  cash  equivalents  are highly
liquid  investments  purchased with an original maturity of ninety days or less.
Non-cash financing and investing  activities are comprised  primarily of capital
lease  obligations  (which were $2,355,000,  $457,000 and $17,000 for 1997, 1996
and 1995) and the acquisition of Alanex in 1997.

     New accounting standard

     In February 1997, the Financial Accounting Standards Board issued Statement
of Financial  Accounting  Standards  No. 128  "Earnings  Per Share" ("FAS 128"),
which will be  effective  for  financial  statements  for periods  ending  after
December 15, 1997,  including  interim  periods,  and establishes  standards for
computing earnings per share.  Earlier  application is not permitted.  Under the
new requirements,  primary and fully diluted earnings per share will be replaced
with basic and diluted earnings per share. Basic earnings per share excludes the
dilutive effect of stock options and is generally  higher than primary  earnings
per share.  In its  consolidated  financial  statements  for the quarter  ending
December 31, 1997, the Company will disclose basic and diluted  earnings  (loss)
per share and provide a  reconciliation  of the numerator and denominator of its
basic and diluted  earnings  (loss) per share  computations,  as  required.  The
Company  will  restate  all prior  period  earnings  (loss)  per share data upon
adoption of FAS 128.  The  application  of FAS 128 for the five years ended June
30,  1997  would not have a  material  effect on the  Company's  per share  data
presented for those periods.

     Reclassifications

     Certain prior year amounts have been reclassified to conform to the current
year presentation.


                                       F-9
<PAGE>


Note 2 -  Short-term investments

     The cost of the  Company's  investment  portfolio  by type of security  and
contractual maturity in the balance sheet is as follows:
<TABLE>
<CAPTION>

(Dollars in thousands)                                                              June 30,
                                                                       ---------------------------------
                                                                                1997                1996
                                                                       -------------      --------------
              <S>                                                      <C>                <C> 
              Type of security:
                  Corporate debt securities                            $      24,401      $        8,535
                  U.S. Treasury securities and obligations
                      of U.S. government agencies                             11,994              62,883
                  Other interest-bearing securities                            2,438               3,006
                                                                       -------------      --------------

                                                                       $      38,833      $       74,424
                                                                       =============      ==============

              Contractual maturity:
                  Maturing in less than twelve months                  $      35,827      $       69,414
                  Maturing between twelve and
                      twenty-one months                                        3,006               5,010
                                                                       -------------      --------------

                                                                       $      38,833      $       74,424
                                                                       =============      ==============
</TABLE>
     The cost of  securities  sold is based  upon  the  specific  identification
method.  There were no  material  unrealized  gains or losses  nor any  material
differences  between the  estimated  fair values and costs of  securities in the
investment portfolio at June 30, 1997 and 1996. Realized gains and losses on the
disposal  of  available-for-sale  securities  during  1997  totaled  $12,000 and
$4,000, respectively.  During 1996 such gains totaled $22,000. During 1995, such
gains and losses totaled $3,000 and $7,000, respectively.


                                       F-10
<PAGE>


Note 3 - Composition of certain financial statement captions
<TABLE>
<CAPTION>

                                                                                         June 30,
                                                                                --------------------------
                                                                                      1997            1996
                                                                                ----------     -----------
(Dollars in thousands)
<S>                                                                             <C>            <C>    

Accounts receivable:
     Trade, net of an allowance for doubtful accounts of $60                    $   26,055     $         0
     Employee                                                                          269             211
     Contract                                                                        4,668           2,645
     Other                                                                             383             110
                                                                                ----------     -----------

                                                                                $   31,375     $     2,966
                                                                                ==========     ===========

Inventories:
     Raw materials                                                              $   18,462     $         0
     Work in process                                                                39,421               0
     Finished goods                                                                    917               0
                                                                                ----------     -----------

                                                                                $   58,800     $         0
                                                                                ==========     ===========

Property and equipment, net:
     Scientific instrumentation                                                 $   16,614     $     9,353
     Computer equipment                                                              8,892           6,881
     Leasehold improvements                                                         10,804           3,184
     Furniture and fixtures                                                          2,464           1,228
                                                                                ----------     -----------

                                                                                    38,774          20,646
     Less accumulated depreciation and amortization                                (16,161)        (13,710)
                                                                                ----------     -----------

                                                                                $   22,613     $     6,936
                                                                                ==========     ===========

Accrued liabilities:
     Vacation                                                                   $    1,932     $       735
     Payroll taxes                                                                   1,670               4
     Commissions                                                                       469               0
     Clinical studies                                                                3,578           3,207
     Other                                                                           1,240             381
                                                                                ----------     -----------

                                                                                $    8,889     $     4,327
                                                                                ==========     ===========

</TABLE>
                                       F-11
<PAGE>


Note 4 - Significant contract arrangements

     Roche

     In January  1997,  the  Company  and JT  granted  Roche  certain  exclusive
marketing  rights to  VIRACEPT  in  Europe  and other  countries  outside  North
America, Japan and Asia. For such rights, the Company received and recognized as
revenue in January 1997, an initial  license fee of  $9,000,000  and will,  upon
approval of VIRACEPT in Europe, receive an additional license fee of $11,000,000
and  subsequent  royalties  based  either on Roche's  sales of  VIRACEPT  or, in
certain circumstances, Invirase(R) (saquinavir), Roche's HIV protease inhibitor.

     Subsequent  to the end of fiscal  1997,  the Company  and JT granted  Roche
certain exclusive marketing rights to VIRACEPT in several Asian territories. For
such rights,  the Company received a license fee of $2,000,000  during the first
quarter of fiscal 1998 and will, upon approval in one of the Asian  territories,
receive an additional  license fee of  $1,000,000  and  subsequent  royalties as
described above.

     In June 1996,  Agouron  granted Roche worldwide  development  rights in two
anti-cancer  drugs  currently  being  developed  by the  Company  and  agreed to
collaborate with Roche on an additional  early-stage  anti-cancer drug discovery
program.  In return for rights to the Company's most advanced  anti-cancer  drug
(THYMITAQ) and an earlier stage anti-cancer  compound  (AG3340),  Roche has paid
$15,000,000 in initial license fees and has agreed to pay milestone  payments of
up to $40,000,000 and to bear 80% of the future  development  costs of these two
drugs. In North America, the Company and Roche will cooperatively market the two
drugs and will share  equally in resulting  profits.  Outside of North  America,
Roche will lead  commercialization  efforts and pay royalties to the Company or,
in certain  circumstances,  will share  profits  with the  Company.  For similar
commercial  rights to compounds  generated in a collaborative  research  program
focused on cyclin-dependent kinases (initially targeting the enzyme cdk4), Roche
is to provide  annual  research  support to the Company of $3,000,000 as well as
subsequent milestone payments of up to $20,000,000 and has agreed to bear 80% of
any  post-research  development  costs.  The  Company  also has a right in North
America to commercialize a Roche anti-cancer  product to be named in the future.
The Company received and recognized as revenue in June 1996, the initial license
payments of $15,000,000.

     Under the terms of the combined agreements with Roche, the Company incurred
costs  of  $17,854,000  and  recognized   corresponding   contract  revenues  of
$14,270,000 for the year ended June 30, 1997.

     In June 1996,  the Company  completed a  three-year  agreement  with Syntex
(U.S.A.) Inc. (now a subsidiary of Roche),  to  collaborate  on the discovery of
novel matrix  metalloprotease  inhibitor drugs.  Each company may pursue further
discovery or development efforts in this program area at its sole discretion and
expense  with  no  subsequent  obligations  to  the  other  company.  Under  the
agreement,  the Company incurred costs and recognized  corresponding revenues of
$3,013,000  during the year ended June 30, 1996. The Company funded a portion of
the activities associated with this collaboration on its own account.


                                       F-12
<PAGE>


     Japan Tobacco Inc.

     In  December  1992,  the  Company  entered  into  an  agreement  with JT to
collaborate  on  the  discovery,  development  and  commercialization  of  novel
therapeutic  drugs which act on key proteins  related to the human immune system
("JT 1992"). In February 1994, the Company expanded its strategic  alliance with
JT into the field of anti-viral drugs for the treatment of infections  caused by
hepatitis C, the herpes family of viruses and the rhinoviruses  ("JT 1994").  In
December  1994,  the  Company  added  its  anti-HIV  drug,  VIRACEPT,  to the JT
collaboration  with the  execution  of a  worldwide  development  and  licensing
agreement ("JT HIV"). In January 1995, JT 1992 was canceled by mutual  agreement
and JT 1992 resources were reallocated to JT 1994 programs. In February 1996, JT
1994 was modified to delete rhinoviruses from the strategic alliance.

     Under the  provisions  of JT 1994,  JT has agreed to make certain  research
payments  to the  Company  of not less than  $8,000,000  over a two year  period
ending December 1996. Such payments could approximate more than $21,000,000 over
a four year period if certain technical milestones are achieved. In addition, JT
made an up-front  payment of  $7,778,000,  which was amortized to revenue over a
twenty-four  month period.  Under the provisions of JT HIV, JT has made payments
of  $30,000,000  to Agouron  representing  initial  and  subsequent  payments of
$2,500,000,  $3,500,000 and $24,000,000.  Additional payments  representing JT's
share of VIRACEPT development costs have also been received. Agouron and JT will
ultimately share equally the costs of further development of VIRACEPT.

     Under the provisions of JT 1994, the Company will have exclusive  rights to
develop,   manufacture   and   market   anti-hepatitis   C,  anti   herpes   and
anti-cytomegalovirus drugs in the United States, Canada and Mexico. JT will have
exclusive rights to develop, manufacture and market these drugs in Japan, Taiwan
and South Korea. Outside the countries in which they respectively have exclusive
rights,  Agouron and JT will have co-exclusive  rights to manufacture and market
jointly developed anti-hepatitis C, anti-herpes and anti-cytomegalovirus  drugs.
Each company will pay royalties to the other based upon their  respective  sales
of  anti-hepatitis  C,  anti-herpes and  anti-cytomegalovirus  drugs.  Under the
provisions  of JT HIV,  Agouron  will  retain  exclusive  commercial  rights  to
VIRACEPT (with the right to sublicense,  subject to JT's right of first refusal)
in the United States,  Canada and Mexico.  JT was granted  exclusive  commercial
rights to VIRACEPT (with the right to sublicense,  subject to Agouron's right of
first  refusal)  in  Japan  and  certain  other  countries  in  Asia.  Exclusive
commercial  rights (with the right to  sublicense)  in Europe,  Asia and certain
other  countries in the world have been licensed by the Company and JT to Roche.
The  Company  and JT will  share  profits  and/or  royalties  equally  from  the
worldwide commercialization of VIRACEPT.

     Under the combined terms of the agreements,  the Company has incurred costs
of  $71,825,000,  $46,969,000,  and  $19,211,000  and  recognized  corresponding
contract  revenues of  $48,886,000,  $37,197,000  and  $22,881,000 for the years
ended June 30, 1997, 1996 and 1995.


                                       F-13
<PAGE>


The  substantive  collaborations  of the Company's  newly acquired  wholly-owned
subsidiary, Alanex Corporation, are described below.

     Roche Bioscience

     In April  1997,  Alanex  and Roche  Bioscience  entered  into a  three-year
library  screening  and  license  agreement  under  which  Alanex  will  provide
compounds  from  its  exploratory  libraries  on a  nonexclusive  basis to Roche
Bioscience.  The agreement  provides for Roche Bioscience to pay a nonrefundable
fee of  $1,000,000  which was received and  recognized as license fee revenue in
May 1997.  Roche  Bioscience is to pay  $6,000,000  over the  three-year  period
during which library  compounds are provided.  In addition,  Roche Bioscience is
obligated  to  make   additional   payments  upon  the  achievement  of  certain
milestones. Under the terms of the agreement, Roche Bioscience has an option for
an  exclusive  royalty  bearing  license  to active  leads  that  arise from the
screening of the Alanex libraries.

     In June  1996,  Alanex  and  Roche  Bioscience  entered  into a  three-year
collaboration  agreement  targeting the treatment of pain.  Roche  Bioscience is
obligated to make certain  payments upon the achievement of defined  milestones.
In addition,  during the term of the agreement,  Roche Bioscience will provide a
minimum of $5,500,000  to support  research at Alanex.  The  agreement  provides
Roche Bioscience an exclusive  worldwide  license to commercialize any compounds
resulting  from the research  that is selected by Roche  Bioscience  for further
development  and to pay  royalties to Alanex on any sales of products  developed
from the collaboration.

     Under all  agreements  with  Roche  Bioscience,  Alanex  incurred  costs of
$376,000 and recognized  corresponding contract revenues of $466,000 for the two
months  ending  June 30,  1997 (the  period  subsequent  to its  acquisition  by
Agouron).

     Novo Nordisk

     In  October  1995,  Alanex  and  Novo  Nordisk  entered  into a  three-year
collaboration  agreement for the  characterization of drugs for the treatment of
diabetes.  Novo Nordisk is obligated to provide up to  $4,500,000  of funding to
support  research  at  Alanex  in the  field  of the  collaboration  and to make
additional  payments to Alanex upon the achievement of certain  milestones.  The
agreement grants Novo Nordisk an option to obtain an exclusive worldwide license
to develop and  commercialize  any drug candidate arising from the collaboration
which they elect to pursue.  Alanex will  receive  royalties on the sales of any
such drug.

     Under the  agreement,  Alanex  incurred  costs of $382,000  and  recognized
corresponding  contract  revenues of $475,000 for the two months ending June 30,
1997.

                                       F-14
<PAGE>


Note 5 - Long-term debt

     Long-term debt and capital lease obligations are as follows:
<TABLE>
<CAPTION>

                                                                                      June 30,
                                                                         -------------------------------

                                                                                  1997              1996
                                                                         -------------    --------------    
<S>                                                                      <C>              <C> 
(Dollars in thousands)

Notes payable, secured with personal property and a                      $         142    $          486
     certificate of deposit; interest at CD rate plus 1.5%,
       maturing June 1997 and November 1998

Capital leases with interest rates between 5.86% and 16.5%,                      2,462               501
     maturing at various dates through December 2001.

Unsecured,  non-interest  bearing,  term  obligation;
     face value of $4,500,000; discounted  to an  8.95%
     effective  rate,  includes  imputed  interest  of $262,000
     due June 28, 2001.                                                          3,194                 0

Term obligation for tenant improvements, interest
     at 11% per annum, payable in monthly installments
     maturing October 1997 and April 2002.                                       2,668                 0
                                                                         -------------    --------------

Total long-term debt and capital lease obligations                               8,466               987

Current portion of long-term debt                                               (2,526)             (486)
                                                                         -------------    --------------

Long-term debt                                                           $       5,940    $          501
                                                                         =============    ==============
</TABLE>

     Maturities of long-term debt,  excluding  capital  leases,  are as follows:
1998 - $1,870,000;  1999-  $243,000;  2000 - $225,000;  2001 - $251,000;  2002 -
$4,721,000 and thereafter $0, less imputed interest of $1,306,000.

                                       F-15
<PAGE>


Note 6 - Income taxes

(Dollars in thousands)

     The components of the provision (benefit) for income taxes are as follows:
<TABLE>
<CAPTION>
       
          Year ended June 30,                             1997         1996         1995
                                                     ---------    ---------     --------
          <S>                                        <C>          <C>           <C>    
          Current:
              Federal                                $       0    $       0     $      0
              State                                          1            1            1
              Foreign                                    1,222          933          863
                                                     ---------    ---------     --------
                                                         1,223          934          864
                                                     ---------    ---------     --------

          Deferred:
              Federal                                  (37,800)           0            0
              State                                     (6,000)           0            0
              Foreign                                        0            0            0
                                                     ---------    ---------     --------
                                                       (43,800)           0            0
                                                     ---------    ---------     --------

                                                     $ (42,577)   $     934     $    864
                                                     =========    =========     ========
</TABLE>

     The  reconciliation of income tax from loss before income taxes computed at
the federal statutory rate (34%) to the Company's actual income tax provision is
as follows:
<TABLE>
<CAPTION>
          Year ended June 30,                             1997         1996         1995
                                                     ---------    ---------     --------
      <S>                                            <C>          <C>           <C> 
      Tax at U.S. federal statutory rate             $ (29,030)   $  (6,320)    $ (4,106)
      State taxes, net of federal benefit                    1            1            1
      Foreign taxes                                      1,222          933          863
      Purchase accounting book/tax basis differences    19,781            0            0
      Change in valuation allowance                    (42,449)       6,245        4,076
      Other                                                415           75           30
      Adjustments to carryover amounts                   7,483            0            0
                                                     ---------    ---------     --------
                                                     $ (42,577)   $     934     $    864
                                                     =========    =========     ========
</TABLE>

     The Company's deferred tax assets and liabilities are as follows:
<TABLE>
<CAPTION>
                                                             June 30
                                                    ----------------------
                                                         1997         1996
                                                    ---------    ---------                   
          <S>                                        <C>          <C>           
          Deferred revenue                           $       0    $   4,694
          Book and tax depreciation/amortization
            differences                                    831        2,117
          Accrued liabilities                            1,363          807
          Net operating loss carryforwards              49,348       26,593
          Foreign tax credits                                0        3,746
          Research and development tax credits           5,676        4,492
          Uniform capitalization                         1,100            0
          Other                                         (2,418)           0
                                                     ---------    ---------
                                                        55,900       42,449
          Valuation allowance                                0      (42,449)
                                                     ---------    ---------
          Deferred taxes, net                        $  55,900    $       0
                                                     =========    =========
</TABLE>

     The Company  has not  recorded  current  provisions  for any United  States
income taxes due to net operating losses for tax reporting purposes. At June 30,
1997, the Company had net operating loss carryforwards for federal tax reporting
purposes  of  approximately  $135,000,000  expiring  from 2000 to 2012.  The net
operating  loss  includes  the tax  benefit  related  to the  exercise  of stock
options,  which  benefit was  recorded  to common  stock.  The Company  also has
federal   research  and  development   credit   carryforwards  of  approximately
$3,400,000  at June 30,  1997.  The future  utilization  of net  operating  loss
carryforwards  for federal and state  income tax purposes may be impacted by the
issuance of additional equity securities.

                                       F-16
<PAGE>


     The Company has net  operating  loss and  research and  development  credit
carryforwards  of  approximately   $31,100,000  and  $2,200,000  for  state  tax
reporting purposes at June 30, 1997, expiring from 1998 to 2002.

     Based on its fourth  quarter  pre-tax profit  (excluding the  non-recurring
charge  associated  with the  acquisition of Alanex) and its estimates of future
taxable  income,  the Company  believes that it is more likely than not that its
deferred tax assets  (comprised  mostly of net operating loss  carryforwards and
research  credits)  will be realized  and has  therefore  recorded  the full tax
benefit of its deferred tax assets as of June 30, 1997.

     Foreign tax expense  represents  certain  withholding taxes associated with
collaboration payments from JT.


                                       F-17
<PAGE>


Note 7 -  Stockholders' equity

     Stock Options

     The Company has five stock option  plans  whereby  6,409,042  shares of the
Company's  common  stock  have  been  reserved  for  issuance  to its  officers,
directors, employees and consultants. The plans, as amended, are administered by
the  Board of  Directors  or its  designees  and  provide  generally  that,  for
incentive  stock  options,  the  exercise  price shall not be less than the fair
market value of the shares at the date of grant and,  for certain  non-qualified
stock options,  the price shall not be less than 85% of the fair market value of
the shares at the date of grant and may be at any price  determined by the Board
of Directors  for others.  The options  expire not later than ten years from the
date of the grant and  generally  become  exercisable  ratably  over a four year
period  beginning  one year from the grant  date.  At June 30,  1997,  1,077,078
options have been  exercised,  1,749,672 were  exercisable and 922,319 shares of
common stock remain  available for grant.  The following table  summarizes stock
option activity for 1995 through 1997:
<TABLE>
<CAPTION>

                                                                              Shares                Prices
                                                                       -------------    ------------------
           <S>                                                         <C>              <C>    
           Outstanding June 30, 1994                                       1,905,439

                Options granted                                              773,275    $  10.13 - $ 24.50
                Options exercised                                            (49,125)       5.40 -   15.50
                Options canceled                                             (43,897)       7.88 -   16.13
                                                                       -------------

           Outstanding June 30, 1995                                       2,585,692         .47 -   24.50

                Options granted                                            1,162,475       23.56 -   46.00
                Options exercised                                           (293,206)       5.40 -   18.38
                Options canceled                                             (40,604)       7.88 -   39.13
                                                                       -------------

           Outstanding June 30, 1996                                       3,414,357        5.40 -   46.00

                Alanex options assumed                                       189,042         .53 -    7.96
                Options granted                                            1,399,250       30.38 -   94.25
                Options exercised                                           (490,236)        .53 -   44.38
                Options canceled                                            (102,768)       8.63 -   72.69
                                                                       -------------

           Outstanding June 30, 1997                                       4,409,645    $    .53 - $ 94.25
                                                                       =============
</TABLE>

                                       F-18
<PAGE>


     The following  table  summarizes  information  concerning  outstanding  and
exercisable options as of June 30, 1997:
<TABLE>
<CAPTION>


                                                 Options Outstanding                      Options Exercisable
                                 ------------------------------------------------     ----------------------------  
                                   Number           Weighted         Weighted            Number          Weighted
                                 Outstanding        Average           Average          Exercisable        Average 
          Ranges of Exercise        as of           Remaining        Exercise             as of          Exercise
          Prices                June 30, 1997     Life (years)         Price          June 30, 1997       Price
                                -------------    --------------   ---------------     -------------     ----------
          <S>                   <C>              <C>              <C>               <C>              <C>  

          Less than $16.25         1,717,954               6.21   $        11.43        1,313,059    $       11.60
          $16.25 to $44.38         1,530,441               8.64            35.85          430,863            33.79
          $44.38 to $82.00         1,088,750               9.33            71.80            5,750            60.29
          Greater than $82.00         72,500               9.73            87.92                0               --
                               -------------     --------------   --------------    -------------    -------------
                                   4,409,645               7.88   $        36.07        1,749,672    $       17.23
                               =============     ==============   ==============    =============    =============
</TABLE>

     The Company  applies APB  Opinion  No. 25 and  related  Interpretations  in
accounting  for  its  plans.  Accordingly,  no  compensation  expense  has  been
recognized for its stock-based  compensation plans. Had compensation expense for
the Company's stock-based plans been determined based upon the fair value method
prescribed  under FAS 123, the Company's net loss and related net loss per share
would have been increased to the following pro-forma amounts:

(In thousands, except per share amounts)                   1997          1996
                                                      ---------      --------

                  Net loss
                    As reported                       ($42,806)     ($19,523)
                    Compensation expense:
                      Stock options                     (9,496)       (1,133)
                      Employee stock purchase plan        (394)         (204)
                                                      --------      --------
                    Pro-forma                         ($52,696)     ($20,860)
                                                      ========      ========

                  Net loss per share
                    As reported                         ($3.18)       ($1.98)
                    Pro-forma                           ($3.91)       ($2.12)

     The  weighted-average  fair value of each option  grant is estimated on the
date of grant using the Black  Scholes  option-pricing  model with the following
weighted-average  assumptions used for 1997 and 1996:  expected volatility of 50
percent;  risk-free  interest rate of 6.1 percent;  an average  expected life of
four years and no  dividends.  The  weighted  average fair value of stock option
grants was $30.50 per share in 1997 and $17.93 per share in 1996.

     In  connection  with its  acquisition  of Alanex  Corporation,  the Company
assumed all of the issued and  outstanding  options of Alanex which  resulted in
options to purchase an aggregate of 189,042 shares of the Company's common stock
at exercise prices ranging from $.53 to $7.96 per share.


                                       F-19
<PAGE>


     Employee Stock Purchase Plan

     The Company  has a stock  purchase  plan in which  eligible  employees  may
purchase  shares of the Company's  common stock through  payroll  deductions.  A
total of 250,000  shares of common stock have been  reserved for issuance  under
the plan,  of which  120,495  shares  remain  available for purchase at June 30,
1997. Funds deducted from participating employees' salaries are used to purchase
common stock at prices equal to 85% of the fair market value of the common stock
on either the first or last day of a purchase period.  During 1997, 4,865 shares
were issued at a price of $28.58 per share, 23,518 shares were issued at a price
of $34.74 per share and 7,536 were  issued at a price of  $57.38.  During  1996,
6,131  shares  were  issued at a price of $9.88 per share,  23,240  shares  were
issued at a price of $19.98 per share and 4,828 shares were issued at a price of
$28.58 per share. During 1995, 25,524 shares were issued at a price of $9.24 per
share and 6,145 shares were issued at a price of $9.88 per share.

     Under FAS 123,  pro-forma  compensation  expense equal to the fair value of
the purchase rights granted under the employee stock purchase plan was estimated
using the Black-Scholes model with the following  assumptions for 1997 and 1996:
an expected life of one year;  expected  volatility  of 50 percent;  a risk-free
interest rate of 5.6 percent; and no dividends.  The weighted-average fair value
of purchase  rights  granted was $11.91 per share in 1997 and $6.94 per share in
1996.

     Warrants

     In  connection  with its  acquisition  of Alanex  Corporation,  the Company
assumed an issued and  outstanding  warrant to  purchase  Alanex  common  stock.
Accordingly,  at June 30,  1997,  a warrant to purchase an  aggregate  of 84,761
shares of the Company's common stock at an exercise price of $8.02 per share was
outstanding.  Pursuant to the merger  agreement with Alanex,  20% of the warrant
shares are subject to certain  restrictions  through May 1998. In July 1997, the
warrant was exercised in its entirety  generating net proceeds to the Company of
approximately $679,800.

                                       F-20
<PAGE>


     Stockholder rights plan

     On  November  7, 1996,  the Board of  Directors  of the  Company  adopted a
Stockholder Rights Plan (the "Plan"). Under the terms of the Plan,  stockholders
of record as of November 21, 1996,  received a dividend of one  Preferred  Stock
Purchase  Right  ("Right(s)")  for each share of common stock held on that date.
The Rights will expire 10 years after issuance,  and will be exercisable only if
a person or group  becomes  the  beneficial  owner of 15% or more of the  common
stock (such person or group,  a "15%  holder") or commences a tender or exchange
offer which would result in the offeror  beneficially  owning 15% or more of the
common stock. Each Right will entitle stockholders to buy one one-ten thousandth
of a share of  Series B  Participating  Preferred  Stock  of the  Company  at an
exercise price of $500.00 per share subject to certain antidilution adjustments.

     If a person or group  accumulates  15% or more of the  common  stock,  each
Right (other than Rights held by a 15% holder and certain related parties, which
will be voided) will be adjusted so that upon  exercise the holder will have the
right  to  receive  that  number  of  shares  of  common  stock  (or in  certain
circumstances,  a combination  of securities  and/or  assets)  having a value of
twice the  exercise  price of the Right.  In addition,  if following  the public
announcement  of the  existence  of a 15% holder the  Company is  involved  in a
merger or business  combination or a sale of 50% or more of the Company's assets
or earning power, each Right (other than Rights held by a 15% holder and certain
related parties,  which will be voided) will represent the right to purchase, at
the exercise price, common stock of the acquiring entity having a value of twice
the exercise price at the time. The Board of Directors will also have the right,
following the public  announcement  of the  existence of a 15% holder,  to cause
each Right  (other than rights held by the 15% holder) to be  exchanged  for one
share of Common Stock.

     The Board of Directors is entitled to redeem the Rights at $0.001 per Right
at any time prior to the public announcement of the existence of a 15% holder.


                                       F-21
<PAGE>


Note 8 - Commitments

     Certain  scientific  instrumentation,  computer  and  other  equipment  are
subject to leases which are classified as capital  leases.  At June 30, 1997 and
1996, $2,895,000 ($2,629,000,  net) and $938,000 ($484,000,  net) of such leased
equipment are included in property and equipment.

     Rental  expenses   (principally  for  leased   facilities  under  long-term
operating  lease  commitments)  were  $3,509,000,  $2,548,000 and $2,198,000 for
1997, 1996 and 1995. Future minimum payments for capital and operating leases at
June 30, 1997 are as follows:
<TABLE>
<CAPTION>

                                                      Capital Leases               Operating Leases
                                                      --------------               ----------------
(Dollars in thousands)
           <S>                                        <C>                           <C>

           1998                                       $        683                  $        4,850
           1999                                                669                           5,564
           2000                                                558                           3,541
           2001                                                432                           3,285
           2002                                                167                           2,088

           Thereafter                                            0                           4,309
                                                      ------------                  --------------

           Total minimum lease payments                      2,509                  $       23,637
                                                                                    ==============
           Less amount representing interest                   (47)
                                                      ------------

           Obligations under capital leases           $      2,462
                                                      ============
</TABLE>

     The Company is involved in certain legal proceedings  generally  incidental
to its normal  business  activities.  While the outcome of any such  proceedings
cannot be  accurately  predicted,  the Company  does not  believe  the  ultimate
resolution of any such existing matters should have a material adverse effect on
its financial position or results of operations.


                                       F-22
<PAGE>


Note 9 - Alanex acquisition

     On April 28,  1997,  the Company  executed a merger  agreement  with Alanex
Corporation, a research company. Under the terms of the merger agreement, Alanex
will operate as a wholly-owned subsidiary of Agouron.

     Under the terms of the completed  transaction,  each issued and outstanding
share of Alanex  common stock was  exchanged  for  approximately  .188 shares of
Agouron common stock and the Company assumed all issued and outstanding  options
and  warrants to  purchase  shares of common  stock of Alanex at the  previously
noted  exchange  rate.  For all  outstanding  shares of common stock and related
options and warrants,  approximately 995,921 shares of Agouron common stock will
be  issued,  subject  to  certain  escrow,  vesting  and  other  limitations  or
restrictions.  Such shares had an aggregate fair market value on the measurement
date of  approximately  $61,000,000  and  transaction  costs were  approximately
$1,300,000.   Of  the  total  purchase  price  (including  transactions  costs),
$57,500,000 was allocated (as more fully described below) to certain  intangible
assets and expensed as in-process  technology and  approximately  $4,800,000 was
allocated to certain tangible and intangible assets and capitalized.

     The  identifiable  intangibles of Alanex include  several drug research and
discovery programs, a proprietary drug discovery technology, a chemical compound
library and an assembled work force.  These intangibles were valued using either
a replacement cost approach (work force, library and proprietary  technology) or
an income approach (research programs). Values assigned to the chemical compound
library and proprietary drug discovery  technology have been capitalized as such
intangibles are of a general nature and may have a number of alternative  future
uses. Values assigned to the drug discovery  programs have been expensed as such
programs  are  pursuing  specific  drug  targets  or  chemical  compounds,   the
technological  feasibility of which having not been demonstrated,  and there may
be no  alternative  future uses for such  targets or chemical  compounds  if the
programs are ultimately less than successful.

     The Company's  statement of  operations  includes the results of operations
related  to the  acquisition  for the two  months  ending  June  30,  1997.  The
following are unaudited  pro-forma  results of operations as if the  transaction
had been consummated on July 1, 1995:

(In thousands except for per share amounts.)
<TABLE>
<CAPTION>

         Year ended June 30,                                               1997              1996
                                                                       -------------    -------------
                                                                        (unaudited)       (unaudited)
         <S>                                                           <C>              <C>


         Revenues                                                      $     138,872    $      62,392
                                                                       =============    =============

         Net income (loss)                                             $      14,276    $     (19,421)
                                                                       =============    =============

         Net income (loss) per common share                            $        1.02    $       (1.83)
                                                                       =============    =============

         Net income (loss) per common share after giving
           effect to 2-for-1 stock split declared on July 30, 1997     $         .51    $        (.92)
                                                                       =============    =============
</TABLE>

                                       F-23
<PAGE>


Note 10 - Subsequent event

     On July 30, 1997, the Company's  Board of Directors  approved a two-for-one
stock split in the form of a special stock dividend of one share of common stock
for each share of the Company's common stock outstanding. The record date of the
transaction  is August  15,  1997 and the  distribution  date will be August 26,
1997.  In applying the effect of the  two-for-one  stock split on a  retroactive
basis,  reported net losses per common share for the fiscal years ended June 30,
1997,  1996 and 1995 would have been  $1.59,  $.99 and $.89,  respectively,  and
total shares  outstanding  at June 30, 1997 and 1996 would have been  29,429,920
and 21,463,374, respectively.

Note 11 - Quarterly financial data (unaudited)

(In thousands, except for
per share amounts)
<TABLE>
<CAPTION>
                                                                   Quarter Ended
                                        ------------------------------------------------------------------
                                         September 30       December 31         March 31        -  June 30
                                        -------------     -------------    -------------     -------------
<S>                                     <C>               <C>              <C>               <C>    

1996
Product sales                           $           0     $           0    $           0     $           0
Gross margin from product sales                     0                 0                0                 0
Net loss                                       (2,523)           (4,132)         (11,006)           (1,862)
Net loss per common share                       (0.33)           (0.40)            (1.04)            (0.17)

1997
Product sales                           $           0     $           0    $      13,401     $      43,568
Gross margin from product sales                     0                 0            7,378            24,992
Net loss                                      (14,447)          (12,556)          (4,999)          (10,804)
Net loss per common share                       (1.15)           (0.93)            (0.37)            (0.76)

</TABLE>
                                       F-24
<PAGE>


31

Item 9.       CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
              FINANCIAL DISCLOSURE

     None.
                                       29
<PAGE>



                                    PART III

Item 10.      DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     The executive officers and directors of the Company are as follows:
<TABLE>
<CAPTION>
                  Name                          Age                        Position
                  ----                          ---                        --------
           <S>                                   <C>          <C>

           Peter Johnson                         52           President, Chief Executive Officer and Director

           Marvin R. Brown, M.D.                 50           Vice President

           Neil J. Clendeninn, M.D., Ph.D.       48           Corporate Vice President, Clinical Affairs

           Steven S. Cowell                      48           Corporate Vice President, Finance and Chief
                                                                Financial Officer

           William C. Denby                      42           Vice President, Head of Marketing and Sales

           Gary E. Friedman                      50           Corporate   Vice    President,    General    Counsel,
                                                              Secretary and Director

           Donna C. Nichols                      40           Vice President, Head of Corporate Communications

           Barry D. Quart, Pharm.D.              40           Senior Vice President, Head of Drug Development

           R. Kent Snyder                        43           Senior Vice President, Head of Commercial Affairs

           Michael D. Varney                     39           Vice President, Head of Research

           Stephanie Webber                      49           Vice President, Head of Development Pharmacology

           Glenn R. Zinser                       54           Corporate Vice President, Head of Operations

           John N. Abelson, Ph.D.(1)             58           Director

           Patricia M. Cloherty(2)               55           Director

           A.E. Cohen(1)                         61           Director

           Michael E. Herman(1)                  56           Director

           Irving S. Johnson, Ph.D.              72           Director

           Antonie T. Knoppers, M.D.(2)          82           Director

           Melvin I. Simon, Ph.D. (2)            60           Director

</TABLE>
(1)  Member of Directors Compensation Committee
(2)  Member of Audit Committee

                                       30
<PAGE>



     Peter  Johnson,  a founder of the Company,  has served as a director and as
president  and chief  executive  officer of the Company  since its  inception in
1984.  Through  1989,  Mr.  Johnson  held  various  positions  with The  Agouron
Institute,  including executive  director.  Mr. Johnson received a M.A. from the
University of California, San Diego.

     Marvin R. Brown joined the Company in June 1997 as vice president. In 1991,
Dr. Brown founded  Alanex and,  from 1993 until  joining the Company,  served as
president, chief executive officer and chairman of the board of Alanex. Prior to
joining  Alanex,  Dr.  Brown  served as  professor  of medicine  and surgery and
director of the peptide biology laboratory at the University of California,  San
Diego from 1986  through 1991 and was on the faculty of the Salk  Institute  for
Biological  Studies  from 1975 to 1986.  Dr. Brown  received  his M.D.  from the
University of Arizona.

     Neil J.  Clendeninn  joined the Company in February 1993 as vice president,
clinical  affairs.  In June 1997, Dr.  Clendeninn was promoted to corporate vice
president.  From 1985 until  joining the Company,  Dr.  Clendeninn  held various
positions  with  Burroughs  Wellcome  Co.,  including  head of the  chemotherapy
section  from 1988.  From 1981  through  1985,  Dr.  Clendeninn  worked with the
clinical oncology and clinical pharmacology groups at the National Institutes of
Health. Dr. Clendeninn received a M.D. and a Ph.D. in pharmacology from New York
University.

     Steven S.  Cowell  joined  the  Company in August  1991 as vice  president,
finance and chief  financial  officer.  In June 1997, Mr. Cowell was promoted to
corporate vice president.  From 1982 until joining the Company,  Mr. Cowell held
various positions, the most recent of which was vice president and controller at
Cetus  Corporation,  a public  biotechnology  company  primarily  engaged in the
development, manufacture and marketing of pharmaceutical products. Mr. Cowell is
a Certified  Public  Accountant  in  California  and received a B.S. in business
administration from the University of California, Berkeley.

     William C. Denby joined the Company in 1995 and in June 1997 was named vice
president,  head of marketing and sales. Previously,  Mr. Denby served as senior
director of marketing and sales. From 1978 until joining the Company,  Mr. Denby
held  various  positions  at  Marion  Laboratories,  Inc.  (now  Hoechst  Marion
Roussel),  including  strategic  planning  manager  and managed  care  marketing
manager.  Mr. Denby received a B.A. in English from the State  University of New
York, and holds a M.B.A. in Finance from Rockhurst College.

     Donna C. Nichols joined the Company in 1987 and in June 1997 was named vice
president,  head of  corporate  communications.  Previously,  Ms.  Nichols  held
various  positions  within  the  Company,  most  recently  as  senior  director,
corporate communications. Ms. Nichols attended Kent State University.

     Gary E. Friedman,  a founder of the Company, has served as a director since
its  inception,  as the  secretary  of the  Company  since  May 1986 and as vice
president and general  counsel since December  1991. In June 1997, Mr.  Friedman
was promoted to corporate vice president.  Previously,  from 1982 until December
1991, Mr. Friedman was a principal of the law firm of Friedman,  Jay & Cramer, a
Professional  Corporation.  Mr. Friedman is a California Certified Specialist in
Taxation.  Mr.  Friedman  received a J.D. and a M.B.A.  from the  University  of
California, Berkeley and a L.L.M. in taxation from the University of San Diego.
                                       31
<PAGE>

     Barry  D.  Quart  joined  the  Company  in June  1993  as  vice  president,
regulatory  affairs. In June 1997, Mr. Quart was named to senior vice president,
head of drug  development.  From 1983 until joining the Company,  Dr. Quart held
various  positions  with  Bristol-Myers  Squibb  Company,   including  executive
director of  international  regulatory  affairs from 1992.  Dr. Quart received a
Pharm.D. in clinical pharmacy from the University of California, San Francisco.

     R. Kent Snyder joined the Company in July 1991 as vice president,  business
development.  In June 1995, Mr.  Snyder's  title was changed to vice  president,
commercial  affairs  and in June  1997,  he was  named  senior  vice  president,
corporate affairs.  From 1982 until joining the Company, Mr. Snyder held various
positions with Marion Laboratories, Inc. (now Hoechst Marion Roussel), including
director of  U.S./European  licensing.  Prior to his employment at Marion,  from
1978  to  1982,   he  held   various   sales  and   marketing   positions   with
Hoffmann-LaRoche Ltd. Mr. Snyder received a M.B.A. from Rockhurst College.

     Michael D. Varney  joined the Company in 1987 and in June 1997 was promoted
to vice president, head of research. A synthetic organic chemist, Dr. Varney has
been  involved  in all  aspects  of drug  discovery  at the  Company  since  its
inception.  Dr.  Varney  received his B.S. in Chemistry  from UCLA and Ph.D.  in
Natural Product  Synthesis from the California  Institute of Technology.  Before
joining the Company, he completed  postdoctoral research in Bioorganic Chemistry
at Columbia University.

     Stephanie  Webber  joined the Company in 1988 and in June 1997 was promoted
to vice  president,  head of development  pharmacology.  Previously,  Dr. Webber
served as senior director,  pharmacology and toxicology.  From 1980 to 1988, Dr.
Webber was a research fellow at the Scripps Clinic and Research Foundation.  She
received her B.S. in Biology from the University of Sussex, England, and holds a
Ph.D. in Zoology from the University of London.

     Glenn R.  Zinser  joined the Company in 1987 and,  since July 1, 1995,  has
served as vice president,  operations.  In June 1997, Mr. Zinser was promoted to
corporate vice president, head of operations. Previously, from 1987 through June
1995, Mr. Zinser held various management  positions with the Company,  including
senior  director,  operations  from July 1993  through  June  1995.  Mr.  Zinser
received a M.B.A. from the University of California, Los Angeles.

     John N. Abelson,  a founder of the Company,  has served as a director since
its inception.  Dr. Abelson, a molecular biologist,  is a member of the National
Academy of Sciences. Since 1982, Dr. Abelson has been a member of the faculty of
the Division of Biology at the California  Institute of Technology  where,  from
October 1989 until June 1995, he served as chairman. Previously, Dr. Abelson was
a member of the faculty in the  Department  of  Chemistry at the  University  of
California, San Diego. Dr. Abelson received a Ph.D. in biophysics from The Johns
Hopkins University and was a postdoctoral  fellow at the Laboratory of Molecular
Biology in Cambridge, England.  Dr. Abelson also serves as a director of The
Agouron Institute.

                                       32
<PAGE>


     Patricia M. Cloherty  joined the Board in December  1988.  Since 1970,  Ms.
Cloherty has been associated with Patricof & Co. Ventures,  Inc.  (formerly Alan
Patricof  Associates,  Inc.), a New York venture capital firm ("Patricof"),  and
has been a general  partner of its funds  since 1973.  In 1993,  she was elected
president of Patricof.  Ms. Cloherty also served as deputy administrator for the
U.S. Small Business Administration in 1977 and 1978. Ms. Cloherty also serves on
the board of directors of several private companies.

     A.E.  Cohen  joined the Board in March 1992.  Mr.  Cohen is an  independent
management consultant. From 1957 until his retirement in January 1992, Mr. Cohen
held various positions at Merck & Co., Inc., including senior vice president and
president  of the Merck Sharp & Dohme  International  Division.  Currently,  Mr.
Cohen is the chairman of the board of Neurobiological Technologies,  Inc. and is
a member of the board of directors of Akzo N.V., Teva Pharmaceutical  Industries
Ltd.,  Vasomedical,  Inc.,  Vion  Pharmaceuticals,  Inc.,  Smith Barney  (Mutual
Funds),  and  Blue  Stone  Capital  Partners,  L.P.,  all of  which  are  public
companies.  Mr.  Cohen also serves as a  consultant  to  MeesPierson  Inc.,  The
Population  Council and Chugai  Pharmaceutical  Co. Ltd., Tokyo ("Chugai"),  and
serves as a director of Chugai's U.S. subsidiary companies.
 
    Michael E. Herman joined the Board in October 1992. Mr. Herman is a private
investor,  as well as president and chief  operating  officer of the Kansas City
Royals Baseball Team. From October 1974 until his retirement in 1990, Mr. Herman
held  various  positions  at  Marion  Laboratories,  Inc.  (now  Hoechst  Marion
Roussel),  including  executive  vice  president  and chief  financial  officer.
Currently,  Mr. Herman serves as chairman of the finance  committee of the Ewing
Marion Kauffman  Foundation,  a private foundation located in Kansas City, where
from 1985 through 1990, he was the president and chief  operating  officer.  Mr.
Herman  is also a  member  of the  board of  directors  of  Cerner  Corporation,
Seafield Capital and SLH  Corporation,  all of which are public  companies,  and
serves on the board of directors of several private companies.

     Irving  S.  Johnson  joined  the  Board  in May  1989.  Dr.  Johnson  is an
independent  consultant in  biomedical  research  working with numerous  private
companies.  From 1953 until his  retirement in November  1988,  Dr. Johnson held
various positions at Eli Lilly and Company, including vice president of research
from 1973 until  1988.  Dr.  Johnson  also served on several  committees  of the
National  Academy of  Sciences,  the  Office of  Technology  Assessment  and the
National  Institutes  of  Health.  Currently,  he is a  member  of the  board of
directors  of  Allelix   Biopharmaceuticals   Inc.  and  Ligand  Pharmaceuticals
Incorporated,  and is on the scientific advisory board of ELAN Corporation,  all
of which are public  companies.  Dr. Johnson  received a Ph.D. in  developmental
biology from the University of Kansas.

     Antonie  T.  Knoppers  joined the Board in July 1991.  Dr.  Knoppers  is an
independent management  consultant.  From 1952 until his retirement in 1975, Dr.
Knoppers held various positions at Merck & Co., Inc., including vice chairman of
the board and president and chief operating officer. Dr. Knoppers is a member of
the board of directors of Centocor,  Inc., a public  biotechnology  company.  In
addition,  he is a former  chairman  of the U.S.  Council  of the  International
Chamber  of  Commerce  and  a  member  of  the  advisory  board  of  PaineWebber
Development Corporation, an affiliate of PaineWebber Incorporated.  Dr. Knoppers
received a M.D. from the University of Amsterdam and a Ph.D. from the University
of Leiden, The Netherlands.
                                       33
<PAGE>


     Melvin I. Simon,  a founder of the Company,  has served as a director since
its inception.  Dr. Simon, a molecular  geneticist,  is a member of the National
Academy of Sciences. Currently, Dr. Simon is chairman of the Division of Biology
at the  California  Institute  of  Technology  where he has been a member of the
faculty  since 1982.  Previously,  Dr.  Simon was a member of the faculty in the
Department of Biology at the  University  of  California,  San Diego.  Dr. Simon
received a Ph.D. in biochemistry from Brandeis University. Dr. Simon also serves
as a director of The Agouron Institute.

Item 11.      EXECUTIVE COMPENSATION

Item 12.      SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Item 13.      CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     The information  required under Part III, Items 10 (in part), 11, 12 and 13
has been  omitted  from this report  since the Company  intends to file with the
Securities and Exchange  Commission,  not later than 120 days after the close of
its fiscal year, a definitive  proxy statement  prepared  pursuant to Regulation
14A, which information is hereby incorporated by reference.


                                       34
<PAGE>


                                     PART IV


Item 14.      EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

 (a)          List of documents filed as part of this report:

              (1)     Financial Statements and Supplementary Data
                      Reference is made to the Index to Financial Statements and
                      Schedules  under  Item 8 in Part II  hereof,  where  these
                      documents are listed.
              (2)     Exhibits - see (c) below

 (b)          Reports on Form 8-K

     Two  reports  on Form 8-K were filed  during  the fourth  quarter of fiscal
1997. The first, filed on May 5, 1997,  reported the execution by the Company of
a Definitive Agreement to acquire Alanex Corporation.  The second, filed on June
4, 1997,  reported  the  closing on May 23,  1997 of the  acquisition  of Alanex
Corporation by the Company. Attached to this Form 8-K are the Alanex Corporation
balance  sheet at December  31, 1996 and 1995,  and the  related  statements  of
operations,  stockholders'  equity and cash flows for the three years then ended
December 31, 1996.

 (c)          Exhibits

         Exhibit
         Number                             Exhibit
         -------      ---------------------------------------------------------
           2.1(a)     Agreement and Plan of Reorganization dated as of April 28,
                      1997, between  Agouron   Pharmaceuticals,   Inc.,  Agouron
                      Acquisition Corporation and Alanex Corporation.
           3.1(b)     Restated Articles of Incorporation (December 10, 1992).
           3.2(c)     Amended and Restated Bylaws (Restated June 17, 1991).
           4.1(d)     Rights  Agreement  dated  November 7, 1996,  as amended on
                      November  27,  1996,  between the Company and Chase Mellon
                      Shareholder  Services.  L.L.C., which includes, as Exhibit
                      A,  the  Certificate  of  Determination,  Preferences  and
                      Rights of Series B Participating  Preferred Stock as filed
                      with the  California  Secretary  of State on November  20,
                      1996.
         10.01(e)     Office Lease dated March 16, 1990 between Nexus Science
                      Centre--Torrey  Pines Associates and the Company.
         10.02(e)     First  Amendment  to  Lease  dated  May 22,  1990  between
                      Nexus  Science  Centre-Torrey  Pines  Associates  and  the
                      Company.
         10.03(q)     Form of 1990 Incentive Stock Option Agreement.
         10.04(q)     Form of 1990 Non-Statutory Stock Option Agreement for 
                      Employees/Officers/Directors.
                                       35
<PAGE>



         Exhibit
         Number                             Exhibit
         -------      ---------------------------------------------------------
         10.05(q)     Form of 1990 Non-Statutory Stock Option Agreement for
                      Consultants.
         10.06(c)     Second  Amendment to Lease dated  January,  1991 between 
                      Nexus Science  Centre-Torrey  Pines  Associates  and  the
                      Company
         10.07(c)     1985 Stock Option Plan (Last Amended August 14, 1991).
         10.08(f)     Agouron Pharmaceuticals, Inc. 401(k) Plan (Amended August
                      1992).
         10.09(b)     Agouron Pharmaceuticals, Inc. Employee Stock Purchase Plan
                      (October 15, 1992).
         10.10(b)     Agouron Pharmaceuticals, Inc. Flexible Benefits Plan
                      (December 10, 1992).
         10.11(g)     Agreement  dated June 8, 1993 between Syntex (U.S.A.) Inc.
                      and the Company.  (Portions of the agreement receive
                      confidential  treatment  pursuant to an application filed
                      September 1, 1993; File No. 0-15609).
         10.12(k)     Lease Amendment dated February 17, 1994 between Koll
                      Hancock Torrey Pines and the Company.
         10.13(h)     Agreement  Two  dated  February  28,  1994 between  Japan
                      Tobacco  Inc.  and  the  Company.
                      (Portions of the agreement receive confidential  treatment
                      pursuant to an application  filed April 25, 1994; File No.
                      0-15609).
         10.14(h)     Agreement  Three dated  February 28, 1994  between  Japan
                      Tobacco  Inc.  and the  Company.
                      (Portions of the agreement receive confidential treatment
                      pursuant to an application filed April 25, 1994;
                      File No. 0-15609).
         10.15(i)     Second  Amendment and  Restatement  of Agreement One dated
                      April 22, 1994 (effective December 18, 1992) between Japan
                      Tobacco Inc. and the Company.  (Portions of the  agreement
                      receive confidential  treatment pursuant to an application
                      filed September 9, 1994; File No.
                      0-15609).
         10.16(j)     Development  and License Agreement dated December 1, 1994
                      between Japan Tobacco Inc. and the Company  (Portions  of
                      the agreement receive confidential treatment pursuant to
                      an application dated January 31, 1995).
         10.17(l)     First  Amendment  to  Development  and  License  Agreement
                      effective  December 1, 1994 between Japan Tobacco Inc. and
                      the Company.  (Confidential  treatment has been  requested
                      for portions of this agreement  pursuant to an application
                      dated January 31, 1996. The underlying agreement was filed
                      as  Exhibit  10.54  on  Form  10-Q  for the  period  ended
                      December  31,   1994,   and   portions   thereof   receive
                      confidential   treatment  pursuant  to  an  order  of  the
                      Securities and Exchange Commission dated June 28, 1995.)
         10.18(j)     Third  Amendment of Agreement One  effective  January 15,
                      1995 between Japan Tobacco Inc. and the  Company (Portions
                      of the agreement receive confidential treatment pursuant 
                      to an application dated January 31, 1995).
         10.19(k)     Amended and Restated Lease dated September 13, 1995
                      between Health Science  Properties,  Inc. and the Company.
         10.20(l)     1990 Stock Option Plan (Restated November 2, 1995).
         10.21(m)     Amendment effective January 1, 1996 to the Agouron
                      Pharmaceuticals, Inc. 401(k) Plan.

                                       36
<PAGE>


         Exhibit
         Number                             Exhibit
         -------      ---------------------------------------------------------
         10.22(m)     First Amendment to Agreement Three effective February 29,
                      1996 between Japan Tobacco,  Inc. and the Company.
         10.23(n)     Letter of Intent between Hoffmann-La Roche Inc. of Nutley,
                      New Jersey, F. Hoffmann-La Roche Ltd of Basel, Switzerland
                      (Roche) and the Company  dated June 19,  1996.  (Portions
                      of the Letter of Intent receive confidential treatment
                      pursuant to a request filed June 21, 1996.)
         10.24(o)     Sub-sublease  dated July 24, 1996, between ITT Residential
                      Capital Serving Corporation and the Company.
         10.25(q)     Lease  Amendment  No. 3 dated  October 16, 1996 between
                      John Hancock Life  Insurance  Company and the Company.
         10.26(q)     Lease dated October 25, 1996 between Scripps Jack, Ltd.
                      and the Company.
         10.27(q)     Sublease between The Scripps Research Institute and the 
                      Company dated November 4, 1996.
         10.28(q)     Premises  Modification  Agreement dated  November 4, 1996
                      between  The  Scripps  Research Institute and the Company.
         10.29(p)     1996 Stock Option Plan.
         10.30(p)     Form of 1996 Incentive Stock Option Agreement.
         10.31(p)     Form of 1996 Non-Statutory Stock Option Agreement for
                      Employees/Officers/Directors.
         10.32(p)     Form of 1996 Stock Option Agreement for Consultants
         10.33        Lease dated November 8, 1996 between Scripps Jack, Ltd. 
                      and the Company.
         10.34        Third  Amendment to  Development  and License  Agreement 
                      effective  December 1, 1996 between Japan   Tobacco  Inc.
                      and  the  Company. (Confidential treatment has been 
                      requested  for  portions  of  this agreement  pursuant to
                      an application dated August 21, 1997, as separately filed
                      with the Securities and Exchange
                      Commission.  The underlying agreement was filed as Exhibit
                      10.54 on Form 10-Q for the period ended December 31, 1994,
                      and  portions  thereof  receive   confidential   treatment
                      pursuant  to an  order  of  the  Securities  and  Exchange
                      Commission dated June 28, 1995.)
         10.35        Second  Amendment  to  Development  and License  Agreement
                      effective  January 17, 1997 between Japan Tobacco Inc. and
                      the Company.  (Confidential  treatment has been  requested
                      for portions of this agreement  pursuant to an application
                      dated  August  21,  1997,  as  separately  filed  with the
                      Securities   and  Exchange   Commission.   The  underlying
                      agreement  was filed as Exhibit 10.54 on Form 10-Q for the
                      period  ended  December 31,  1994,  and  portions  thereof
                      receive confidential treatment pursuant to an order of the
                      Securities and Exchange Commission dated June 28, 1995.)
         10.36(q)     Letter  of  Intent  between  F.  Hoffmann-La  Roche Ltd of
                      Basel,  Switzerland,  Japan Tobacco Inc.,  and the Company
                      dated January 17, 1997.  (Confidential  treatment has been
                      requested  for portions of this  agreement  pursuant to an
                      application  dated January 27, 1997,  as separately  filed
                      with the Securities and Exchange Commission.)

                                       37
<PAGE>


         Exhibit
         Number                             Exhibit
         -------      ---------------------------------------------------------
         10.37        AG3340  Development and License  Agreement  between
                      F. Hoffmann-La  Roche Ltd and Hoffmann-La Roche Inc. and
                      the Company dated June 11, 1997. (Confidential  treatment
                      has been  requested for  portions  of this  agreement
                      pursuant  to an  application  dated  August 21,  1997, as
                      separately filed with the Securities and Exchange 
                      Commission.)
         10.38        THYMITAQ  Development and License  Agreement between
                      F. Hoffmann-La Roche Ltd and Hoffmann-La Roche Inc. and
                      the Company dated June 11, 1997. (Confidential  treatment
                      has been  requested for  portions  of this  agreement
                      pursuant  to an  application  dated  August 21,  1997, as
                      separately filed with the Securities and Exchange
                      Commission.)
         10.39        Lease dated June 13, 1997 between LMC-Sorrento Investment
                      Company, LLC and the Company.
         10.40        VIRACEPT  License  Agreement  between the Company and
                      Japan Tobacco Inc. and F. Hoffmann-La Roche Ltd dated
                      June 30, 1997. (Confidential treatment has been requested
                      for portions of this agreement pursuant to an application
                      dated August 21, 1997, as separately filed with the
                      Securities and Exchange Commission.)
         21           Subsidiary of Agouron Pharmaceuticals, Inc.
         23.1         Consent of Independent Accountants.
         27           Financial  Data  Schedule.  (Exhibit 27 is  submitted  as
                      an exhibit  only in the  electronic format  of  this
                      Annual Report on Form 10-K  submitted  to the  Securities
                      and  Exchange Commission.)
         99           Important Factors Regarding Forward-Looking Statements.

- ---------------------
     (a) Incorporated by Reference to Form 8-K filed on May 23, 1997.
     (b) Incorporated by Reference to Form 10-Q filed for the quarter ended
         December 31, 1992.
     (c) Incorporated by Reference to Form 10-K filed for the year ended 
         June 30, 1991.
     (d) Incorporated by Reference for Form 8-K/A filed on December 20, 1996,
         File No. 001-12445.
     (e) Incorporated by Reference to Form 8-K filed on May 25, 1990.
     (f) Incorporated by Reference to Form 10-K filed for the year ended
         June 30, 1992.
     (g) Incorporated by Reference to Form 10-K filed for the year ended
         June 30, 1993.
     (h) Incorporated by Reference to Form 10-Q/A filed for the quarter ended
         March 31, 1994.
     (i) Incorporated by Reference to Form 10-K filed for the year ended
         June 30, 1994.
     (j) Incorporated by Reference to Form 10-Q filed for the quarter ended
         December 31, 1994.
     (k) Incorporated by Reference to Form 10-K filed for the year ended
         June 30, 1995.
     (l) Incorporated by Reference to Form 10-Q filed for the quarter ended
         December 31, 1995.
     (m) Incorporated by Reference to Form 10-Q filed for the quarter ended
         March 31, 1996.
     (n) Incorporated by Reference to Form 8-K filed on June 21, 1996.
     (o) Incorporated by Reference to Form 10-K for the year ended June 30, 
         1996.
     (p) Incorporated by Reference to Form S-8 filed on November 26, 1996,
         File No. 333-16815.
     (q) Incorporated by Reference to Form 10-Q for the quarter ended
         December 31, 1996.

                                       38
<PAGE>


                                   Signatures

     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.
                                  AGOURON PHARMACEUTICALS, INC.

August 18, 1997                   By:  /s/ Peter Johnson
                                  -------------------------------
                                  Peter Johnson
                                  President, Chief Executive Officer
                                  and Director

     Pursuant to the  requirements of the Securities  Exchange Act of 1934, this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
registrant and in the capacities and on the date indicated.
<TABLE>
<CAPTION>

Signature                                                 Title                         Date
<S>                                         <C>                                         <C>    

/s/ Peter Johnson                           President, Chief Executive                  August 18, 1997
- ------------------------------------
Peter Johnson                               Officer and Director

/s/ Steven S. Cowell                        Corporate Vice President, Finance           August 18, 1997
- ------------------------------------
Steven S. Cowell                            and Chief Financial Officer

/s/ Gary E. Friedman                        Corporate Vice President,                   August 18, 1997
- ------------------------------------
Gary E. Friedman                            General Counsel, Secretary
                                            and Director

/s/ John N. Abelson                         Director                                    August 18, 1997
- ------------------------------------
John N. Abelson, Ph.D.

/s/ Patricia M. Cloherty                    Director                                    August 18, 1997
- ------------------------------------
Patricia M. Cloherty

/s/ A. E. Cohen                             Director                                    August 18, 1997
- ------------------------------------
A. E. Cohen

/s/ Michael E. Herman                       Director                                    August 18, 1997
- ------------------------------------
Michael E. Herman

/s/ Irving S. Johnson                       Director                                    August 18, 1997
- ------------------------------------
Irving S. Johnson, Ph.D.

/s/ Antonie T. Knoppers                     Director                                    August 18, 1997
- ------------------------------------
Antonie T. Knoppers, M.D.

/s/ Melvin I. Simon                         Director                                    August 18, 1997
- ------------------------------------
Melvin I. Simon, Ph.D.
</TABLE>

                                       39

================================================================================

                               STANDARD FORM LEASE

================================================================================

         This Lease dated October 25, 1996 (this "Lease") is entered into by and
between Scripps Jack, Ltd., a California  limited  partnership  ("Landlord") and
Agouron Pharmaceuticals, Inc., a California corporation ("Tenant").


                                   ARTICLE I.

                             BASIC LEASE PROVISIONS

         Each reference in this Lease to the "Basic Lease Provisions" shall mean
and refer to the following  terms, the application of which shall be governed by
the provisions in the remaining Articles of this Lease:

1.         Address of Landlord: Birtcher Property Services
                                27611 La Paz  Road,  Laguna  Niguel,  CA 92677  
                                with a copy to  Scripps Jack,  Ltd., P.O. 
                                Box 614, Bloomington,  Illinois,  61702,  
                                Attn: Real Estate Services

2.        Premises Address:    4245 Sorrento Valley Boulevard
                               San Diego, Ca  92121

3.        Address of Tenant:

                  (a)      Notices: 4245 Sorrento Valley Boulevard
                           San Diego, California, 92121

                  (b)      Billing: Agouron Pharmaceuticals, Inc.
                           10350 North Torrey Pines Road
                           La Jolla, California, 92037-1020

4.        Tenant's Trade Name:  Agouron Pharmaceuticals, Inc.

5.        Tenant's Contact:  Glenn Zinser    Telephone:  (619) 622-3005

6.        Premises Square Footage: Both the Premises and the Building consist of
          approximately  22,843 square feet of gross building area ("Square Feet
          of Gross  Building  Area").  The exact  number of Square Feet of Gross
          Building Area in the Premises and the Building  shall be determined as
          set forth in Section 2.1 below.

7.        Commencement Date:  See Section 3.2

8.        Term:    From the Commencement Date through December 31,2001

9.        Initial  Monthly Rent:  The initial  Monthly Rent payable by Tenant to
          Landlord shall be One and 45/100  Dollars  ($1.45) per square foot per
          month of Square  Feet of Gross  Building  Area  within  the  Premises,
          subject  to  adjustment   pursuant  to  Exhibit  E  attached   hereto.
          Accordingly,  the approximate  amount of the initial Monthly
          Rent shall be Thirty  Three-Thousand One Hundred Twenty Two and 35/100
          Dollars  ($33,122.35).  In the event the Square Feet of Gross Building
          Area in the  Premises as  determined  in  accordance  with Section 2.1
          differs from the  approximate  amount of Square Feet of Gross Building
          Area set forth in Item 6 of the Basic Lease  Provisions,  Landlord and
          Tenant  agree to  promptly  execute an  amendment  to this Lease which
          revises the amounts of Minimum Rent provided  herein and in Exhibit E.
         
          Additionally,  to the extent that Tenant has overpaid  Monthly Rent 
          for the period from the Commencement  Date until the end of the month 
          in which the  determination  of the  Rentable  Square Feet of Floor 
          Area of the Premises  pursuant to Section 2.1 is made,  Landlord shall
          immediately reimburse Tenant therefore.  Similarly,  to the extent 
          that Tenant has underpaid  Landlord  Monthly  Rent  for  such  period,
          Tenant  shall immediately pay Landlord such there shall be no 
          underpayment.

10.       Security Deposit: $35,000.00

11.       Permitted   Uses:   Biotech   research  and  development  and  related
          pharmaceutical  operations,  pursuant to  approvals  to be obtained by
          Tenant from all relevant City, County and other required  governmental
          agencies and authorities.

12.       Broker:  Landlord's Broker - C.B. Commercial Real Estate Group, Inc.
                  Tenant's Broker - Colliers Iliff Thorn

13.       Landlord's Architect:  Carrier Design Group, Inc.

14.       Guarantor:  None

15.       Vehicle Parking Spaces:  Seventy (70)

16.       Additional Insureds:  Birtcher Property Services and Scripps Jack, 
          Ltd.

17.       Tenant's Liability Insurance Limits: $10,000,000.00

18.       Tenant's Share: 100%

                                      -1-
<PAGE>


Exhibits:

         A    Description of Premises
         B    Property Description
         C    Work Letter
         D    Commencement Date Memorandum
         E    Adjustments to Monthly Rent
         F    Rules and Regulations
         G    Environmental Questionnaire

Riders:

         Rider No.1 to Lease

                                      -2-
<PAGE>

                                   ARTICLE II

                                   DEFINITIONS

         2.1 Certain Definitions.  The capitalized terms set forth below, unless
the context clearly  requires  otherwise,  shall have the following  meanings in
this Lease:

             "Additional   Rent"  means  any  and  all  sums   (whether  or  not
specifically  called  "Additional  Rent" in this Lease)  other than Monthly Rent
which Tenant is or becomes  obligated to pay to Landlord  under this Lease.  See
also Rent.

             "Alterations"  means any alterations,  decorations,  modifications,
additions  or  improvements  made in,  on,  about,  under or  contiguous  to the
Building or the Premises after the Commencement Date including,  but not limited
to,  lighting,  HVAC and  electrical  fixtures,  pipes and  conduits,  transfer,
storage and disposal facilities,  partitions,  drapery, wall coverings, shelves,
cabinetwork,  carpeting and other floor coverings,  ceiling tiles,  fixtures and
carpentry installations.

             "Applicable Laws" means the laws, rules,  regulations,  ordinances,
restrictions, and practices described in Section 5.2.

             "Applicable  Rate" means the greater of ten percent (10%) per annum
or five percent (5%) in excess of the discount rate of the Federal  Reserve Bank
of San Francisco in effect on the twenty-fifth  (25th) day of the calendar month
immediately  prior to the event giving rise to the Applicable  Rate  imposition;
provided,  however,  the  Applicable  Rate shall in no event  exceed the maximum
interest rate permitted to be charged by applicable law.

             "Broker"  means the person or entity  identified  in Item 12 of the
Basic Lease Provisions.

             "Building"  means that certain  building  within which the Premises
are located.

             "Casualty" is defined in Section 12.1.


             "City" means the city in which the Premises are located.

             "Commencement  Date"  means  the  commencement  date  of the  Term,
described in Section 3.2.

             "Common  Area"  means all areas and  facilities  within the Project
exclusive  of the Premises  and other  portions of the Project  leased (or to be
leased)  exclusively  to other  tenants.  The Common Area  includes,  but is not
limited to,  parking areas,  access and perimeter  roads,  sidewalk,  landscaped
areas and similar areas and facilities. Tenant's use of the Common Area, and its
rights and obligations with respect thereto, are more particularly  described in
Article X.

             "County" means the county in which the Premises are located.

             "Event  of  Default"  means  the  Tenant   defaults   described  in
Section15.1.

             "Guarantor"  means the person(s) or entity identified in Item 14 of
the Basic Lease Provisions, if any.

             "HVAC" means the heating,  ventilating and air conditioning  system
serving the Building.

             "Hazardous Materials" is defined in Section 6.1.

             "Landlord's    Agents"   means   Landlord's    authorized   agents,
representatives,   property   managers   (whether   as  agents  or   independent
contractors),  consultants,  contractors,  partners,  subsidiaries,  affiliates,
directors,  officers and employees,  including without limitation the Additional
Insureds named in Item 16 of the Basic Lease Provisions.

             "Landlord's  Architect" means the architect or  architectural  firm
from time to time  designated  by Landlord to perform the function of Landlord's
Architect set forth in this Lease.  Landlord's  Architect initially shall be the
architect  or  architectural  firm  designated  in  Item 13 of the  Basic  Lease
Provisions.

             "Lease"   means  this   instrument   together  with  all  exhibits,
amendments, addenda and riders attached hereto and made a part hereof.

             "Monthly  Rent" means the monthly  rental which Tenant is to pay to
Landlord  pursuant to Section 4.1, as the same may be adjusted from time to time
as set forth in this Lease. See also Rent.

             "Mortgage" means any mortgage, deed of trust, or similar lien on or
covering the Project or any part thereof.

             "Mortgagee"  means any  mortgagee of a mortgage,  beneficiary  of a
deed of trust or lender  having a lien on or  covering  the  Project or any part
thereof.

             "Notice"  means  each and  every  notice,  communication,  request,
demand,  reply or  advice,  or  duplicate  thereof,  in this Lease  provided  or
permitted  to be given,  made or  accepted by either  party to any other  party,
which shall be in writing and given in accordance with the provisions of Section
21.6.

                                      -3-
<PAGE>

             "Operating  Expenses" means,  collectively,  Project Costs and Real
Property Taxes.

             "Plans" means the final working  drawings for the  construction  of
the Tenant  Improvements  to be prepared  and  approved as set forth in the Work
Letter.

             "Outside  Areas" means the areas outside the exterior  walls of the
Building.

             "Premises"  means the  premises  shown in  Exhibit A, and all areas
appurtenant  thereto,  if any,  for the  exclusive  use of  Tenant,  as shown in
ExhibitA.  The Premises are located  within and  constitute  the Building at the
address set forth in Item 2 of the Basic Lease Provisions.

             "Premises Square Footage" means the floor area of both the Premises
and the  Building.  Upon  substantial  completion  of the  Premises,  Landlord's
architect or another  appropriate  professional  shall  certify the total Square
Feet of Gross Building Area in the Premises and the Building based upon the BOMA
Gross Building Area standard of measurement.

                  "Project"   means  that   certain  real   property,   and  all
improvements  thereon,  including  the  Building  and other  buildings,  if any,
located  within the  boundaries  of such  property,  described  in the  Property
Description.

             "Project Costs" is defined in Section 7.3.

             "Property Description" means Exhibit B.

             "Real Property Taxes" is defined in Section 7.4.

             "Rent" means Monthly Rent and Additional Rent, collectively.

             "Rules and  Regulations"  means the rules and regulations  attached
hereto as Exhibit F and any  modifications  thereto  promulgated  by Landlord or
Landlord's Agents from time to time.

             "Security  Deposit"  means the  amount  set forth in Item 10 of the
Basic Lease  Provisions,  which shall be paid to Landlord by Tenant  pursuant to
Section4.6.

             "Substantial  Completion" and  "substantially  completed" means the
date on which the repair of the Premises  following a Casualty,  have been fully
completed  except for minor details of construction,  mechanical  adjustments or
decoration which do not materially  interfere with Tenant's use and enjoyment of
the Premises (items normally referred to as "punch list" items).

             "Tenant  Delays"  means any and all  delays due to the fault of the
Tenant,  but  only to the  extent  caused  by such  default,  including  without
limitation  Tenant's  failure to deliver to Landlord  prior to the  Commencement
Date,  executed  copies of  policies of  insurance  or  certificates  thereof as
required under Section 11.8.

             "Tenant Improvements" means those certain improvements,  if any, to
be constructed on the Premises as provided in Article XX and in the Work Letter.

             "Tenant's   Agents"   means   Tenant's   agents,   representatives,
consultants,   contractors,   affiliates,   subsidiaries,  officers,  directors,
employees, subtenants, guests and invitees.

             "Tenant's   Personal   Property"  means  Tenant's  removable  trade
fixtures, furniture,  equipment and other personal property located in or on the
Premises.

             "Term" means the term of this Lease, as provided in Section 3.2.

             "Unavoidable  Delay"  means any  delays  which are beyond a party's
reasonable  control  including,  but not  limited  to,  delays due to  inclement
weather, strikes, acts of God, inability to obtain labor or materials, inability
to secure governmental approvals or permits,  governmental  restrictions,  civil
commotion, fire, earthquake,  explosion,  flood, hurricane, the elements, or the
public enemy, action or interference of governmental  authorities or agents, war
invasion,  insurrection,  rebellion,  riots, lockouts or any other cause whether
similar or  dissimilar  to the  foregoing  which is beyond a party's  reasonable
control;  provided  however,  that in no event shall any of the  foregoing  ever
apply with respect to the payment of any monetary obligation.

             "Work  Letter"  means the work letter  between  Landlord and Tenant
regarding the  construction of the Tenant  Improvements,  if any, in the form of
Exhibit C.

         2.2 Other Definitions.  Terms defined elsewhere in this Lease,
unless the context clearly requires  otherwise,  shall have the meaning as there
given.

                                      -4-
<PAGE>

                                   ARTICLE III

                                PREMISES AND TERM

         3.1 Lease of Premises. Subject to and upon the terms and conditions set
forth herein,  Landlord hereby leases the Premises to Tenant,  and Tenant hereby
leases the Premises from Landlord.

         3.2  Terms and  Commencement.  Unless  sooner  terminated  as  provided
herein,  the Term of this Lease shall be for that period of years and months set
forth in Item8 of the Basic  Lease  Provisions,  as the same may be  extended in
accordance  with any option or options to extend the Term  granted  herein,  and
shall  commence  (the  "Commencement  Date") on the  earlier of (i) the later to
occur of May  15,1997 or  two-hundred  ten (210) days  after  Landlord  delivers
possession  of the  Premises  to Tenant or (ii) the date that Tenant is issued a
certificate  of occupancy or temporary  certificate  of occupancy by the City of
San Diego. When the actual  Commencement Date has occurred,  Landlord and Tenant
shall execute a Commencement Date Memorandum in the form shown in Exhibit D.

         3.3  Early  Entry.  Tenant  and  its  authorized  agents,  contractors,
subcontractors  and  employees  shall be granted a license by  Landlord to enter
upon the Premises,  at Tenant's sole risk and expense,  during ordinary business
hours  prior to the  Commencement  Date,  for the  sole  purpose  of  installing
Tenant's trade fixtures and equipment in the Premises;  provided,  however, that
(i) the  provisions  of this  Lease,  other than with  respect to the payment of
Monthly Rent, shall apply during such early entry including, but not limited to,
the provisions of ArticleXI  relating to Tenant's  indemnification  of Landlord,
(ii)prior to any such entry,  Tenant  shall pay for and provide  evidence of the
insurance  to be provided by Tenant  pursuant to the  provisions  of  ArticleXI,
(iii)Tenant  shall pay all  utility,  service  and  maintenance  charges for the
Premises  attributable  to  Tenant's  early  entry  and use of the  Premises  as
reasonably determined by Landlord,  (iv)Tenant shall not unreasonably interfere,
delay or hinder  Landlord,  its agents,  contractors  or  subcontractors  in the
construction  of the Tenant  Improvements  in accordance  with the provisions of
this  Lease,  and  (v)Tenant  shall  not use the  Premises  for the  storage  of
inventory or otherwise  commence the operation of business  during the period of
such early  entry.  Upon  Tenant's  breach of any of the  foregoing  conditions,
Landlord may, in addition to exercising any of its other rights and remedies set
forth herein,  revoke such license upon notice to Tenant.  Early entry by Tenant
in  accordance  with this  Section3.3  shall  not  constitute  occupancy  of the
Premises for purposes of establishing the Commencement Date.

         3.4 Delay in  Possession.  If for any reason  Landlord  cannot  deliver
possession  of the  Premises  to  Tenant  on or before  the  Commencement  Date,
Landlord shall not be subject to any liability therefor,  and such failure shall
not affect the validity of this Lease or the  obligations  of Tenant  hereunder,
but in  such  case,  Tenant  shall  not be  obligated  to pay  Monthly  Rent  or
Additional  Rent other than as provided in Section3.3 and  Section3.5  until the
Commencement  Date as defined in Section 3.2 above,  has  occurred.  If Landlord
does not  deliver  possession  of the  Premises  to Tenant  within ten (10) days
following  the full  execution  of the Lease by Landlord and Tenant plus periods
attributable to Tenant Delays or Unavoidable  Delay,  Tenant may, at its option,
by Notice to Landlord within ten (10) days thereafter,  terminate this Lease, in
which  event  the  parties  shall be  discharged  from all  further  obligations
hereunder;  provided,  however,  if Tenant fails to give such notice to Landlord
within such ten-day  period,  Tenant shall no longer have the right to terminate
this Lease  under this  Section3.4.  Tenant  understands  that,  notwithstanding
anything to the contrary contained herein,  Landlord shall have no obligation to
deliver  possession  of the  Premises  to Tenant for so long as Tenant  fails to
deliver to Landlord  executed  copies of policies of insurance  or  certificates
thereof as required under Section11.8.

         3.5  Tenant  Delays.  The  Commencement  Date  shall not be  delayed or
postponed due to Tenant Delays, and the Term,  Tenant's  obligations to pay Rent
and all of Tenant's other  obligations  under this Lease shall commence upon the
date which would have been the Commencement Date but for Tenant Delays.

         3.6 Condition of Premises. Landlord's sole construction obligations, if
any,  regarding Tenant  Improvements for the Premises are set forth in ArticleXX
and the Work Letter.  The taking of  possession or use of the Premises by Tenant
for any  purpose  other  than  as  provided  in  Section3.3  shall  conclusively
establish  that Tenant has  inspected  the Premises and accepts them as being in
good and sanitary  order,  condition  and repair,  except for latent  structural
structural defects and Landlord's  maintenance  obligations set forth in Article
IX.

         3.7 No  Representations.  Tenant acknowledges that neither Landlord nor
any of Landlord's  Agents has made any  representations  or warranties as to the
suitability  or fitness of the  Premises  for the conduct of  Tenant's  business
including,  but not  limited to, any  representations  or  warranties  regarding
zoning or other land use  matters,  or for any other  purpose,  and that neither
Landlord nor any of Landlord's Agents has agreed to undertake any alterations or
additions  or  construct  any  Tenant  Improvements  to the  Premises  except as
expressly provided in this Lease. Landlord is not aware of any restrictions that
would adversely affect the Permitted Uses contemplated in this Lease.


                                   ARTICLE IV

                              RENT AND ADJUSTMENTS

         4.1 Monthly Rent. From and after the  Commencement  Date,  Tenant shall
pay to the Landlord,  for each calendar  month of the Term, the Monthly Rent set
forth in Item9 of the Basic Lease  Provisions,  as the same may be adjusted from

                                      -5-
<PAGE>

time to time as provided in Section4.2. Monthly Rent shall be due and payable to
Landlord in lawful money of the United  States,  in advance,  on the first (1st)
day of each calendar month of the Term, without abatement,  deduction,  claim or
offset,  and without prior notice,  invoice or demand, at Landlord's address set
forth in Item1 of the Basic Lease  Provisions  or at such place as Landlord  may
from time to time  designate.  Tenant's  payment of  Monthly  Rent for the first
(1st)  month of the Term  shall  be  delivered  to  Landlord  concurrently  with
Tenant's execution of this Lease.

         4.2  Adjustments.  Monthly Rent shall be adjusted  from time to time as
provided in Exhibit E.

         4.3 Additional  Rent.  All Additional  Rent shall be due and payable to
Landlord in lawful money of the United States,  at Landlord's  address set forth
in Item1 of the Basic Lease  Provisions  or at such other place as Landlord  may
from time to time  designate,  without  abatement,  deduction,  claim or offset,
within ten (10) days of receipt of Landlord's  invoice or statement for same, or
if this  Lease  provides  another  time  for the  payment  of  certain  items of
Additional Rent, then at such other time.

         4.4 Prorations.  If the Commencement Date is not the first (1st) day of
a month, or if the expiration of the Term of this Lease is not the last day of a
month,  a prorated  installment of Monthly Rent based on a thirty (30) day month
shall be paid for the  fractional  month  during  which  the Term  commences  or
terminates.

         4.5 Late  Payment  Charges.  Tenant  acknowledges  that late payment by
Tenant to Landlord  of Rent under this Lease will cause  Landlord to incur costs
not contemplated by this Lease, the exact amount of which is extremely difficult
or  impracticable  to  determine.  Such costs  include,  but are not limited to,
processing and accounting charges,  late charges that may be imposed on Landlord
by the terms of any Mortgage, and late charges and penalties that may be imposed
due to late payment of Real Property  Taxes.  Therefore,  if any  installment of
Monthly Rent or any payment of  Additional  Rent due from Tenant is not received
by Landlord in good funds by the tenth (10) calendar day from the applicable due
date,  Tenant shall pay to Landlord an additional sum equal to the lesser of One
Thousand  Dollars  ($1,000.00)  or three percent (3%) of the amount overdue as a
late charge for every month or portion  thereof that such amount remains unpaid.
The parties  acknowledge  that this late charge  presents a fair and  reasonable
estimate of the costs that  Landlord will incur by reason of the late payment by
Tenant.  Acceptance of any late Rent and late charge  therefor shall not prevent
Landlord  from  exercising  any of the other  rights and  remedies  available to
Landlord for any other Event of Default  under this Lease.  Notwithstanding  the
foregoing  (i) should any  payment of Rent by  personal  check be  rejected  for
insufficient  funds,  Landlord shall have the right,  upon notice to Tenant,  to
require  that all future  payments  by Tenant  under this Lease be by  cashier's
check acceptable to Landlord, and (ii)upon the third (3rd) occurrence during the
Term of Tenant's failure to timely pay Rent when due,  Landlord may, upon notice
to Tenant,  require  that  Monthly  Rent for the  balance of the Term be made in
quarterly installments, in advance, in an amount equal to the sum of the Monthly
Rent amounts payable during such three (3) month period.

         4.6 Security  Deposit.  Tenant has deposited  with Landlord the sum set
forth in Item10 of the Basic Lease Provisions as a Security Deposit for the full
and  faithful  performance  of every  provision of this Lease to be performed by
Tenant.  Upon an  uncured  Event of  Default,  and  whether or not  Landlord  is
informed of or has  knowledged  of the event of Default,  the  Security  Deposit
shall be deemed  to be  automatically  applied,  without  waiver  of any  rights
Landlord  may have  under  this  Lease or at law or in  equity as a result of an
Event of Default,  to the  payment of any Rent not paid when due,  the repair of
damage to the  Premises or the payment of any other  amount  which  Landlord may
spend or become obligated to spend by reason of an Event of Default, to the full
extent  permitted by law. If any portion of the Security  Deposit is so applied,
Tenant shall,  within ten (10) days after written demand therefor,  deposit cash
with  Landlord in an amount  sufficient  to restore the Security  Deposit to its
original  amount.  Landlord  shall not be required to keep the Security  Deposit
separate from its general funds. The unused portion of the Security Deposit,  if
any,  shall be returned to Tenant within  thirty (30) days of the  expiration of
this  Lease or any  termination  of this  Lease not  resulting  from an Event of
Default,  so long as Tenant has vacated the  Premises in the manner  required by
this Lease and paid all sums  required  to be paid under  this  Lease,  provided
however,  that  Landlord may retain the Security  Deposit until such time as any
amounts of  Additional  Rent due from  Tenant have been  determined  and paid in
full. Tenant hereby waives the provisions of  Section1950.7(c) of the California
Civil Code and any present or future laws otherwise  governing the return of the
Security  Deposit to Tenant to the extent of reasonably  anticipated  Additional
Rent retained by Landlord pursuant to the previous sentence.

                                    ARTICLE V

                                       USE

         5.1 Tenant's Use. Tenant shall use the Premises solely for the purposes
set forth in Item11 of the Basic Lease Provisions and shall use the Premises for
no other  purpose.  Tenant's use of the Premises  shall be subject to all of the
terms and  conditions  of this  Lease  including,  but not  limited  to, all the
provisions of this ArticleV.  Tenant,  at Tenant's sole cost and expense,  shall
procure,  maintain and make available for Landlord's  inspection  throughout the
Term, all governmental  approvals,  licenses and permits required for the proper
and lawful  conduct of Tenant's  permitted  use of the  Premises.  At Landlord's
request, Tenant shall deliver copies of all such approvals, licenses and permits
to Landlord.

         5.2 Compliance With Applicable Laws.  Throughout the Term,  Tenant,  at
Tenant's  sole  cost and  expense,  shall  comply  with,  and  shall not use the
Premises, Building or Common Area, or suffer or permit anything to be done in or
about the same which will in any way conflict  with, (i) any and all present and

                                      -6-
<PAGE>

future laws, statutes,  zoning restrictions,  ordinances,  orders,  regulations,
directions,  rules and requirements of all  governmental or private  authorities
having  jurisdiction  over all or any part o the  Premises  (including,  but not
limited  to,  state,  municipal,   county  and  federal  governments  and  their
departments,  bureaus,  boards and officials) pertaining to the use or occupancy
of, or applicable to, the Premises or privileges appurtenant to or in connection
with the enjoyment of the Premises,  (ii)any and all applicable  federal,  state
and local laws,  regulations or ordinances  pertaining to air and water quality,
Hazardous  Materials (as defined in Section6.1),  waste disposal,  air emissions
and other  environmental  or health and  safety  matters,  zoning,  land use and
utility availability,  which impose any duty upon Landlord or Tenant directly or
with  respect to the use or  occupation  of the Project or any portion  thereof,
(iii)the  requirements  of the Board of Fire  Underwriters or other similar body
now or hereafter  constituted  relating to or affecting  the  condition,  use or
occupancy of the Project or any portion thereof, (iv)any covenants,  conditions,
easements or restrictions now or hereafter  affecting or encumbering the Project
or any portion thereof,  regardless of when they become effective,  (v)the Rules
and Regulations, and (vi)good business practices (collectively, (i) through (vi)
above are hereinafter referred to as "Applicable Laws"). Tenant shall not commit
any waste of the  Premises,  Building  or  Project,  or any  public  or  private
nuisance  or any  other  act or thing  which  might or would  disturb  the quiet
enjoyment of any other  tenant of Landlord or any  occupant of nearby  property.
Tenant  shall not place or permit to be placed any loads upon the floors,  walls
or ceilings  in excess of the maximum  designed  load  specified  by Landlord or
which might damage the Premises or the Building, or place or permit to be placed
any  liquids  in  levels  in excess of  applicable  laws or  regulations  in the
drainage systems, and Tenant shall not dump or store, or permit to be dumped for
stored, any inventory,  waste materials,  refuse or other materials or allow any
such  materials to remain  outside the  Building  proper,  except in  designated
enclosed trash areas. Tenant shall not conduct or permit any auctions, sheriff's
sales or other like activities at the Project or any portion thereof.

         5.3 Restrictions.  Tenant agrees that it will subordinate this Lease to
any other covenants,  conditions and  restrictions  and any reciprocal  easement
agreements or any similar agreements which Landlord may hereafter record against
the  Premises  and to  any  amendment  or  modification  to any of the  existing
Restrictions,  provided that such subordination does not unreasonably  interfere
with  Tenant's use and  enjoyment of the  Premises,  adversely  affect  Tenant's
rights,  or increase  the  monetary or other  obligations  of Tenant  under this
Lease.

         5.4 Landlord's  Right of Entry.  Landlord and  Landlord's  Agents shall
have the right to enter the  Premises at all  reasonable  times upon  reasonable
notice to  Tenant,  except  for  emergencies  in which  case no notice  shall be
required,  to inspect the  Premises,  to take samples and conduct  environmental
investigations,  to post notices of  nonresponsibility  and similar  notices and
signs indicating the availability of the Premises for sale, to show the Premises
to  interested  parties  such as  prospective  lenders and  purchasers,  to make
necessary   Alterations  or  maintenance  and  repairs,   to  perform   Tenant's
obligations  as  permitted  herein  when  Tenant has failed to do so and, at any
reasonable  time after one hundred  eighty (180) days prior to the expiration of
the  Term,  to  place  upon  the  Premises   reasonable   signs  indicating  the
availability  of the Premises for lease and to show the Premises to  prospective
tenants,  all  without  being  deemed to have  caused an  eviction of Tenant and
without any  liability  to Tenant or  abatement  of Rent.  The above  rights are
subject to reasonable  security  regulations  of Tenant,  and in exercising  its
rights set forth herein,  Landlord  shall  endeavor to cause the least  possible
interference with Tenant's business.  Landlord shall at all times have the right
to  retain a key  which  unlocks  all of the  doors in the  Premises,  excluding
Tenant's  vaults and safes,  and Landlord and  Landlord's  Agents shall have the
right to use any and all means which  Landlord may deem proper to open the doors
in an emergency to obtain entry to the  Premises,  and any entry to the Premises
so  obtained  by  Landlord  or  Landlord's  Agents  shall  not be deemed to be a
forcible or unlawful entry into, or a detainer of, the Premises,  or an eviction
of Tenant from the Premises if conducted reasonably in accordance with the terms
of this Lease.


                                   ARTICLE VI

                               HAZARDOUS MATERIALS

         6.1 Definition of Hazardous Materials.  For purposes of this Lease, the
term "Hazardous  Materials" includes (i) any "hazardous materials" as defined in
Section25501(k)   of  the  California  Health  and  Safety  Code  unless  Tenant
establishes,  to the  satisfaction  of Landlord,  that because of the  quantity,
concentration, or physical or chemical characteristics, such substance or matter
does not pose a present or potential hazard to human health and safety or to the
environment, (ii)any other substance or matter which results in liability to any
person or entity from exposure to which  substance or matter under any statutory
or common law theory,  and  (iii)any  substance  or matter which is in excess of
relevant and appropriate  levels set forth in any applicable  federal,  state or

                                      -7-
<PAGE>

local law or regulation pertaining to any hazardous or toxic substance, material
or waste, or for which any applicable  federal,  state or local agency orders or
otherwise requires removal, treatment or remediation.

                                      -8-
<PAGE>

         6.2  Prohibition/Compliance.  Tenant  shall  not  cause or  permit  any
Hazardous Material (as hereinafter  defined) to be brought upon, kept or used in
or about the Premises or the Project in violation of  applicable  law by Tenant,
its  agents,  employees,   contractors  or  invitees.  If  Tenant  breaches  the
obligation  stated in the  preceding  sentence,  or if the presence of Hazardous
Materials results in unlawful  contamination of the Premises,  the Building, the
Project or any adjacent  property or if unlawful  contamination of the Premises,
the  Building,  the  Project or any  adjacent  property  by  Hazardous  Material
otherwise  occurs  during  the term of this  Lease or any  extension  or renewal
hereof or holding over hereunder,  then Tenant shall indemnify,  defend and hold
Landlord,  its  agents  and  contractors  harmless  from  any  and  all  claims,
judgments,  damages penalties,  fines,  costs,  liabilities or losses (including
without  limitation  diminution  in value of the  Premises or any portion of the
Project,  damages for the loss or restriction on use of rentable or usable space
or of any amenity of the Premises or Project,  damages  arising from any adverse
impact on marketing  of space in the  Premises or the Project,  and sums paid in
settlement of claims,  attorneys'  fees,  consultant fees and expert fees) which
arise during or after the Lease term as a result of such contamination.  For the
purpose of this Section 6.2, unlawful  contamination is Hazardous Material which
violates  any  applicable  local,  state or federal laws or any  regulations  or
standards promulgated thereunder, including requirements or standards imposed by
any governmental  agency or by governmental  order or court having  jurisdiction
over the Project.  This indemnification of Landlord by Tenant includes,  without
limitation,  costs  incurred  in  connection  with  any  investigation  of  site
conditions of any cleanup,  remedial,  removal,  or restoration work required by
any federal, state or local governmental agency or political subdivision because
of Hazardous Material present in the air, soil or ground water above on or under
the Premises.  Without limiting the foregoing,  if the presence of any Hazardous
Material on the Premises,  the Building,  the Project or any adjacent  property,
caused or  permitted  by Tenant  results in any  unlawful  contamination  of the
Premises,  the  Building,  the Project or any  adjacent  property,  Tenant shall
promptly  take all actions at its sole  expense as are  necessary  to ensure the
Premises,  the  Building,  the  Project  or  any  adjacent  property  meets  all
applicable  local,  state and  federal  laws and any  regulations  or  standards
promulgated thereunder,  in effect now or in the future,  including requirements
by any governmental  agency or imposed by any governmental order or court having
jurisdiction over the project,  provided that Landlord's approval of such action
shall first be obtained,  which approval shall not  unreasonably  be withheld so
long as such actions would not potentially have any material  adverse  long-term
or short-term effect on the Premises, the Building or the Project.

         6.3 Business.  Landlord  acknowledges that it is not the intent of this
Article 6 to prohibit Tenant from operating its business as described in Item 11
of the Basic Lease Provisions above.  Tenant may operate its business  according
to the  custom  of the  industry  so long as the use or  presence  of  Hazardous
Material  is  strictly  and  properly  monitored  according  to  all  applicable
governmental requirements.  As a material inducement to Landlord to allow Tenant
to use  Hazardous  Material in connection  with its  business,  Tenant agrees to
deliver to Landlord prior to the Commencement  Date a list identifying each type
of Hazardous  Material to be present on the  Premises and setting  forth any and
all  governmental  approvals or permits required in connection with the presence
of such Hazardous Material on the Premises ("Hazardous  Material List").  Tenant
shall  deliver to Landlord an updated  Hazardous  Material  List at least once a
year.  Tenant shall deliver to Landlord true and correct copies of the following
documents (hereinafter referred to as the "Documents") relating to the handling,
storage,  disposal and emission of Hazardous  Material prior to the Commencement
Date,  or if  unavailable  at the  time,  concurrent  with the  receipt  from or

                                      -9-
<PAGE>

submission  to  a  governmental   agency:   permits;   approvals;   reports  and
correspondence;  storage and management plans, notice of violations of any laws;
plans  relating to the  installation  of any storage tanks to be installed in or
under the Project (provided,  said installation of tanks shall only be permitted
after Landlord has given Tenant its written  consent to do so, which consent may
be withheld in Landlord's sole and absolute  discretion);  and all closure plans
or any  other  documents  required  by any  and all  federal,  state  and  local
governmental  agencies and authorities for any storage tanks installed in, on or
under the Project for the  closure of any such  tanks.  Tenant is not  required,
however,  to provide  Landlord with any  portion(s) of the Documents  containing
information of a proprietary nature which, in and of themselves,  do not contain
a reference to any  Hazardous  Material or hazardous  activities.  It is not the
intent of this  Section to provide  Landlord  with  information  which  could be
detrimental to Tenant's  business should such  information  become  possessed by
Tenant's competitors.

         6.4 Termination of Lease. Notwithstanding the provisions of Section 6.2
above,  if Tenant  or the  proposed  assignee  or  sublessee  is  subject  to an
enforcement  order issued by any  governmental  authority in connection with the
use, disposal or storage of a Hazardous Material at the Project,  Landlord shall
have the right to terminate the Lease in Landlord's sole and absolute discretion
(with  respect  to  any  such  matter  involving  Tenant)  and it  shall  not be
unreasonable for Landlord to withhold its consent to any proposed  assignment or
subletting  (with  respect to any such matter  involving a proposed  assignee or
sublessee).

         6.5 Testing.  At reasonable  times, and from time to time, prior to the
expiration  of the Term  Landlord  shall  have the right at its own  expense  to
conduct  appropriate  investigations  and tests of the  Premises,  Building  and
Project to demonstrate that unlawful  contamination  has occurred as a result of
Tenant's use of the Premises.  Tenant shall be  responsible  for the cost of any
investigations  and tests which  indicate that unlawful  contamination  resulted
from Tenant's use of the Premises.  Tenant shall be solely  responsible  for and
shall  defend,  indemnify  and hold the  Landlord,  its agents  and  contractors
harmless  from an against any and all claims,  costs and  liabilities  including
actual  attorneys'  fees and costs,  arising  out of or in  connection  with any
removal,  clean up,  restoration and materials  required hereunder to ensure the
Premises and any other property of whatever nature,  meets all applicable local,
state and federal laws and any regulations or standards promulgated  thereunder,
in effect  now or in the  future,  including  requirements  by any  governmental
agency or imposed by any governmental  order or court having  jurisdiction  over
the  project.  Tenant shall pay for the cost of a third party  prepared  Phase I
exit audit of the Premises at the termination of the Leases plus the cost of any
tests or remediations  reasonably  recommended in said audit to bring any Tenant
caused  contamination to meet all applicable  local,  state and federal laws and
any  regulations or standards  promulgated  thereunder,  in effect now or in the
future,  including  requirements  by any  governmental  agency or imposed by any
governmental order or court having jurisdiction over the Project.

         6.6 Tenant's  Responsibility at Conclusion of Lease.  Promptly upon the
expiration or sooner termination of this Lease, Tenant shall certify to Landlord
in writing that  (i)Tenant has made a diligent  effort to determine  whether any
Hazardous  Materials are on, under or about the Premises as a result of any acts
or omissions or Tenant or Tenant's  Agents and (ii)no such  Hazardous  Materials
exist on, under or about the Premises other than as  specifically  identified to
Landlord by Tenant in writing.  In addition,  Tenant shall provide Landlord with
independent verification (acceptable to Landlord) that (i) all permits, reports,
closure or  decertification  procedures,  if  applicable,  have been  secured or
satisfied by Tenant for its  discontinuance  of use of the  Premises  under this
Lease  and  (ii)  the  interior  of the  Premises  is free of  contamination  by
Hazardous  Materials.  If Tenant or its independent  verification  discloses the
existence of Hazardous Materials on, under or about the Premises, or if Landlord
at any time  discovers  that Tenant or Tenant's  Agents  caused or permitted the
release of a Hazardous  Material on, under,  from or about the Premises,  Tenant
shall, at Landlord's request,  immediately prepare and submit to Landlord within
thirty (30) days after such request a comprehensive  plan, subject to Landlord's
approval, specifying the actions to be taken by Tenant to return the Premises to
the condition  existing prior to the  introduction of such Hazardous  Materials.
Upon  Landlord's  approval of such cleanup plan,  Tenant shall, at Tenant's sole
cost and  expense,  without  limitation  on any rights and  remedies of Landlord
under  this Lease or at law or in equity,  immediately  implement  such plan and
proceed to clean up such Hazardous  Materials in accordance  with all Applicable
Laws and as required by such plan and this Lease.


                                   ARTICLE VII

                      OPERATING EXPENSES; TAXES; UTILITIES

         7 1. Payment of Maintenance  Expenses.  Prior to the Commencement  Date
and  thereafter  prior to the  commencement  of each of Landlord's  fiscal years
during  the  Term,  Landlord  shall  give  Tenant a  written  estimate  based on
generally  accepted  accounting  principles of Maintenance  Expenses  (hereafter
defined) for the ensuing  fiscal year or partial fiscal year as the case may be.
Tenant shall pay, as an item of Additional  Rent such estimated  amount in equal
monthly  installments,  in  advance,  on or before  the first  (1st) day of each
calendar month  concurrent with its payment of Monthly Rent. If Landlord has not
furnished  its written  estimate by the time set forth  above,  Tenant shall pay
monthly  installments  of Maintenance  Expenses at the rate  established for the
prior fiscal year,  if any;  provided that when the new estimate is delivered to
Tenant,  Tenant shall (provided it is given not less than thirty (30) days prior
written  notice) at the next  monthly  payment  date pay  Landlord  any  accrued
deficiency  based on the new  estimate,  or  Landlord  shall  credit any accrued
overpayment  based on such estimate  toward  Tenant's next  installment  payment
hereunder.  Within a reasonable period of time after the end of each fiscal year
(in no event more than one hundred  (120) days after the end of each fiscal year
unless sooner  completed by Landlord)  Landlord shall furnish Tenant a statement

                                      -10-
<PAGE>

showing in reasonable  detail the actual  Maintenance  Expenses incurred for the
period in  question.  If Tenant's  estimated  payments  are less than the actual
Maintenance Expenses as shown by the applicable statement,  Tenant shall pay the
difference to Landlord within thirty (30) days thereafter.  If Tenant shall have
overpaid  Landlord,  Landlord shall credit such overpayment toward Tenant's next
installment  payment  hereunder  or if in the last year of the Lease Term and at
Tenant's  option,  refund such overpayment  within 30 days thereafter.  When the
final  determination is made of the actual  Maintenance  Expenses for the fiscal
year in which  this  Lease  terminates,  Tenant  shall,  even if this  Lease has
terminated,  pay to Landlord  within thirty (30) days after notice the excess of
such actual Maintenance Expenses over the estimate of Maintenance Expenses paid.
Conversely,  any  overpayment  shall be rebated by Landlord to Tenant  within 30
days. If Landlord  shall  determine at any time that the estimate of Maintenance
Expenses for the current  fiscal year is or will become  inadequate  to meet all
such Maintenance Expenses for any reason,  Landlord shall immediately  determine
the  approximate  amount of such  inadequacy and issue a  supplemental  estimate
based  on  generally  accepted  accounting  principles  as to  such  Maintenance
Expenses and Tenant  shall pay any  increase as  reflected by such  supplemental
estimate,  provided  it is given not less  than 20 days  prior  written  notice.
Landlord  shall  keep or  cause  to be  kept  separate  and  complete  books  of
accounting  covering all Maintenance  Expenses,  and shall preserve for at least
twenty-four  (24)  months  after  the  close of each  fiscal  year all  material
documents  evidencing said Maintenance Expenses for that fiscal year. Tenant, at
its sole cost and expense, through any certified public accountant designated by
it, or by Tenant's or Tenant's parents financial analysis department, shall have
the right,  during reasonable  business hours and not more frequently than twice
during  any  fiscal  year,  to  examine  and/or  audit the  books and  documents
mentioned above evidencing such costs and expenses for the previous fiscal year.
Any delay or failure  by  Landlord  in  delivering  any  estimate  or  statement
pursuant  to this  Section  7.1  shall not  constitute  a waiver of its right to
require Tenant to pay all  Maintenance  Expenses  pursuant  hereto,  unless such
failure continues for a period in excess of twelve (12) months.

         7.2 Definition of Maintenance Expenses. The term "Maintenance Expenses"
means  all  reasonable  direct  costs  and  expenses  incurred  by  Landlord  or
Landlord's  Agents in connection  with the operation,  maintenance and repair of
the Outside Areas,  including,  but not limited to, the following:  actual costs
and expenses  incurred in connection  with labor and  materials  utilized in the
performance of Landlord's maintenance and repair obligations pursuant to Section
9.1;  any and all  assessments  levied  against the Premises or the Common Area,
water,  electrical and other utility services  supplied directly to the Building
and Common  Area,  removal of trash,  rubbish and other  refuse from the Outside
Areas and Common Area, cleaning of and replacement of signs of the Outside Areas
and Common Area,  including  revamping and repairs made as reasonably  required;
repair, operation and maintenance of the Common Area, including, but not limited
to,  removal of any  obstructions  not  reasonably  required for the Common Area
uses,  prohibition  and  removal of the sale or display  of  merchandise  or the
storing of materials  and/or  equipment  in the Common Area,  and payment of all
electrical,  water and other utility  charges or fees for services  furnished to
the Common Area and Outside Areas;  obtaining and maintaining  public liability,
property  damage and other forms of insurance  which Landlord may or is required
to maintain in connection  with the Building and the Common Area  (including the
payment of any  deductibles  thereunder);  costs  incurred  in  connection  with
Tenant's  compliance  of  any  laws  or  changes  in  laws  regarding  Hazardous
Materials;  equipment and supplies; employment of such personnel as Landlord may
deem reasonably necessary,  if any, to direct parking and police the Common Area
and  facilities;  the  cost  of any  capital  improvements  (other  than  tenant
improvements for specific tenants)  specifically  benefitting Tenant and made by
or on behalf of Landlord  to the  Outside  Areas or Common Area to the extent of
the amortized  amount thereof over the useful life of such capital  improvements
calculated at a market cost of funds,  all as reasonably  determined by Landlord
using generally  accepted  accounting  principles,  for each such year of useful
life  during the Term;  depreciation  amortized  over the  longest  useful  life
permitted  under the Internal  Revenue Code of machinery and  equipment  used in
connection with the maintenance and operation of the Outside Areas or the Common
Area for which a reasonable reserve has not been established as herein provided;
employment of personnel used in connection with any of the foregoing, including,
but not limited to, payment or provision for  unemployment  insurance,  workers'
compensation  insurance  and  other  employee  costs;  the  actual  cost  of any
Environmental  consultant or other services used in connection  with  Landlord's
monitoring of the Project with respect to Hazardous  Materials (such costs shall
not exceed $1,000.00 per calendar year); the cost of any tax, insurance or other
consultant  utilized  in  connection  with  the  Project;  and any  other  items
reasonably necessary from time to time to properly repair, replace, maintain and
operate the Outside Areas or the Common Area. If Landlord  elects to perform any
maintenance or repair herein described in conjunction with properties other than
the Project, and if a common maintenance  contractor is contracted with for such
purpose, the contract amount allocable to the Project, as reasonably  determined
by  Landlord,  shall  be  added to and  deemed  a part of  Maintenance  Expenses
hereunder.  Increases in  Maintenance  Expenses by reason of a  disproportionate
impact by Tenant thereon (for example,  and not by way of limitation,  increases
in costs of trash collection because of Tenant's  excessive  generation of trash
or increases  in costs of Outside  Areas or Common Area  maintenance  because of
Tenant's  unpermitted  storage of inventory or materials in the Outside Areas or
Common Area), in Landlord's  reasonable judgment,  may be billed by Landlord, as
an item of Additional Rent, directly to Tenant.

         7.3 Payment of Real  Property  Taxes.  Landlord  shall pay, at Tenant's
expense and subject to  reimbursement  by Tenant as hereinafter  set forth,  all
Real Property Taxes (as hereinafter  defined) levied against the Premises during
the Term and any Real  Property  Taxes which have accrued  during the Term.  The
amount of such  payments  by  Landlord  shall be based on tax bills and  notices
received by Landlord pertaining to the Premises (and if Tenant receives any such
tax bills or notices,  Tenant shall  immediately  forward same to Landlord)  and
such  payment  shall be made  before the last day such Real  Property  Taxes are
payable  without  penalty.  Tenant shall  reimburse  to Landlord,  as an item 

                                      -11-
<PAGE>

of Additional Rent, the full amount of such Real Property Taxes paid by Landlord
within thirty (30) days after Landlord's  statement or invoice  therefor,  which
statement or invoice shall be accompanied  by reasonable  evidence of the amount
of such Real  Property  Taxes.  Real  Property  Taxes shall not include any late
charges,  penalties or interest  attributable  to Landlord's late payment (other
than caused solely by Tenant) or any charges, assessments or levies attributable
to another tenant or another tenant's improvements.
         7.4 Definition of Real Property  Taxes.  The term "Real Property Taxes"
means any form of tax, assessment, charge, license, fee, rent tax, levy, penalty
(if a result of Tenant's  delinquency),  real  property or other tax (other than
Landlord's net income, estate, succession, inheritance, or franchise taxes), now
or hereafter imposed with respect to the Project or any part thereof  (including
any  alterations),  this  Lease  or any Rent  payable  under  this  Lease by any
authority  having the direct or indirect  power to tax, or by any city,  county,
state or federal  government or any  improvement  district or other  district or
division  thereof,  whether such tax or any portion thereof (i)is  determined by
the area of the Project or any part thereof or the Rent payable under this Lease
by Tenant  including,  but not limited to, any gross income or excise tax levied
by any of the  foregoing  authorities  with  respect  to receipt of the Rent due
under this Lease,  (ii)is levied or assessed in lieu of, in substitution for, or
in addition to, existing or additional  taxes with respect to the Project or any
part  thereof  whether  or not now  customary  or within  the  contemplation  of
Landlord or Tenant,  or (iii)is  based upon any legal or  equitable  interest of
Landlord in the Project or any part thereof.

         7.5  Apportionment  of Taxes.  If the  Project is assessed as part of a
larger parcel,  then Landlord shall equitably  apportion the Real Property Taxes
assessed  against the real  property,  which includes the Project and reasonably
determine  the amount of Real Property  Taxes  attributable  to the Project.  If
other  buildings  exist  on  the  assessed  parcel,   the  Real  Property  Taxes
apportioned  to the Project shall be based upon the ratio of the square  footage
of all  buildings  within the Project to the square  footage of all buildings on
the assessed parcel, and the amount of Real Property Taxes so apportioned to the
Project shall be included as part of Operating Expenses.  Landlord's  reasonable
determination of such apportionment shall be conclusive.

         7.6  Tax  on  Improvements;   Permitted  Contests.   Tenant  shall,  at
Landlord's  election,  be directly responsible for and shall pay the full amount
of any  increase  in Real  Property  Taxes  attributable  to any and all  Tenant
Improvements and any other  improvements of any kind whatsoever placed in, on or
about the Premises  for the benefit of, at the request of, or by Tenant.  Tenant
may contest the amount or validity  of any Real  Property  Taxes by  appropriate
proceedings,  provided  that  Tenant  gives  Landlord  prior  Notice of any such
contest and keeps Landlord advised as to all  proceedings,  and provided further
that Tenant shall continue to reimburse  Landlord for Landlord's payment of such
Real  Property  Taxes unless such  proceedings  shall operate to prevent or stay
such payment and the collection of the tax so contested.  Landlord shall join in
any such  proceedings  if any  Applicable  Laws shall so require,  provided that
Tenant shall hold  harmless,  indemnify,  protect and defend  Landlord  from and
against any liability,  claim,  demand, cost or expense in connection  therewith
including,  but not  limited to,  actual  attorneys'  fees and costs  reasonably
incurred.

         7.7 Utilities and Services.  Tenant shall be responsible  for and shall
pay promptly,  directly to the appropriate supplier, all charges for water, gas,
electricity,  heat, light, power, telephone,  refuse pickup, janitorial service,
interior landscape  maintenance and all other utilities,  materials and services
furnished  directly to Tenant or the  Premises or used by Tenant in, on or about
the Premises during the Term,  together with any taxes thereon. If any utilities
or services are not  separately  metered or assessed to Tenant,  Landlord  shall
make a reasonable  determination of Tenant's  proportionate share of the cost of
such utilities and services and Tenant shall pay such amount to Landlord,  as an
item of  Additional  Rent,  within  thirty (30) days after receipt of Landlord's
statement or invoice therefor. Alternatively, Landlord may elect to include such
cost in the  definition  of  Project  Costs,  in which  event  Tenant  shall pay
Tenant's share of such cost in the manner set forth in Section7.1.  Landlord may
also require Tenant to have any Specialized  HVAC system  separately  metered to
Tenant,  at  Tenant's  expense.  Landlord  shall  not be liable  in  damages  or
otherwise  for any  failure or  interruption  of any  utility  or other  service
furnished to the  Premises,  unless the direct  result of or directly  caused by
Landlord's gross negligence.  No such failure or interruption shall be deemed an
eviction or entitle Tenant to terminate this Lease or withhold or abate any Rent
due hereunder.


                                  ARTICLE VIII

                                   ALTERATIONS

         8.1 Permitted  Alterations.  After the Commencement  Date, Tenant shall
not make or permit any Alterations  in, or about the Premises  without the prior
written consent of Landlord (which consent shall not be unreasonably  withheld),
except for the Work defined in the  Workletter  attached  hereto as Exhibit "C",
and Alterations not exceeding Five Thousand Dollars  ($5,000.00) per occurrence.
Notwithstanding  the  foregoing,  without the prior written  consent of Landlord
(which  consent  shall  not be  unreasonably  withheld,  in no event  shall  any
Alterations  (i)affect  the exterior of the Building or the outside areas (or be
visible from  adjoining  sites),  (ii)affect or penetrate any of the  structural
portions of the Building including,  but not limited to, the roof,  (iii)require
any change to the basic floor plan of the Premises, any change to the structural
or mechanical components of the Premises, or any governmental approval or permit
as a prerequisite to the construction thereof, (iv) interfere in any manner with
the proper  functioning of or Landlord's  access to any mechanical,  electrical,
plumbing or HVAC  systems,  facilities  or  equipment  located in or serving the
Building,  or (v)diminish the value of the Premises.  All  Alterations  shall be
constructed  pursuant to plans and  specifications  previously  provided to and,
when  

                                      -12-
<PAGE>

applicable,  approved  in writing by  Landlord,  shall be  installed  by a
licensed  contractor at Tenant's sole expense in compliance  with all Applicable
Laws, and shall be accomplished in a good and workmanlike  manner  conforming in
quality and design with the Premises  existing as of the  Commencement  Date. No
Hazardous   Materials    including,    but   not   limited   to,   asbestos   or
asbestos-containing materials, shall be used by Tenant or Tenant's Agents in the
construction of any Alterations  permitted  hereunder.  All Alterations  made by
Tenant  shall be and become  the  property  of  Landlord  upon the  installation
thereof and shall not be deemed Tenant's Personal Property;  provided,  however,
that except for the Work defined in the  Workletter  attached  hereto as Exhibit
"C", Landlord may, at its option,  require that Tenant,  upon the termination of
this Lease, at Tenant's expense,  remove any or all  nonstructural  Alterations,
except  Alterations  required  by law,  installed  by or on behalf of Tenant and
return the Premises to its condition as of the Commencement  Date of this Lease,
normal wear and tear  excepted.  Notwithstanding  any other  provisions  of this
Lease,  Tenant  shall be solely  responsible  for the  maintenance,  repair  and
replacement of any and all Alterations made by or on behalf of Tenant (including
without limitation by Landlord on behalf of Tenant) to the Premises.

         8.2 Trade Fixtures.  Tenant shall, at its own expense, provide, install
and maintain in good condition all of Tenant's Personal Property required in the
conduct of its business in the Premises.

         8.3  Mechanic's  Liens.  Tenant shall give Landlord  Notice of Tenant's
intention to perform any work on the Premises which might result in any claim of
lien at least twenty (20) days prior to the  commencement of such work to enable
Landlord  to post and  record  a notice  of  nonresponsibility  or other  notice
Landlord deems proper prior to the  commencement of any such work.  Tenant shall
not permit any mechanic's,  materialmen's or other liens to be filed against the
property of which the Premises are a part or against Tenant's leasehold interest
in the  Premises.  If Tenant fails to cause the release of record of any lien(s)
filed against the Premises or its leasehold estate therein by payment or posting
of a proper bond within ten (10) days from the date of the lien filing(s),  then
Landlord  may, at  Tenant's  expense,  cause such  lien(s) to be released by any
means Landlord deems proper including, but not limited to, payment of or defense
against the claim giving rise to the  lien(s).  All sums  reasonably  disbursed,
deposited or incurred by Landlord in connection  with the release of the lien(s)
including,  but not limited to, all costs,  expenses and actual attorneys' fees,
shall be due and payable by Tenant to Landlord,  as an item of Additional  Rent,
on demand by Landlord,  together with interest  thereon at the  Applicable  Rate
from the date of such demand until paid by Tenant.


                                   ARTICLE IX

                             MAINTENANCE AND REPAIR

         9.1 Landlord's Maintenance of Outside Areas. Landlord shall, subject to
receiving Tenant's payment of Maintenance Expenses,  and subject to Section 9.2,
Article XII and Article XIII,  maintain in good condition and repair the Outside
Areas  and  every  part  thereof,  including  but not  limited  to,  landscaping
(including replacement thereof), sprinkler systems, walkways, parking areas, and
approved signage. Such maintenance shall include pest control, restriping of the
parking areas and painting of the exterior  walls of the  Building,  as and when
the same becomes  necessary in  Landlord's  sole  discretion  which shall not be
unreasonable,  maintenance and repair of the foundations, exterior walls and the
structural  condition of interior bearing walls. The cost of any maintenance and
repairs  on the part of  Landlord  provided  for in this  Section  9.1  shall be
amortized over the longest useful life permitted under the Internal Revenue Code
and shall be considered  part of Maintenance  Expenses and paid by Tenant in the
manner set forth in Section 7.1,  except that repairs which Landlord deems arise
out of any act or  omission of Tenant or  Tenant's  Agents  shall be made at the
expense of Tenant.  Landlord's obligation to repair and maintain hereunder shall
be limited to the cost of effecting such repair and  maintenance and in no event
shall  Landlord be liable for any costs or  expenses in excess of said  amounts,
including but not limited to any  consequential  damages,  opportunity  costs or
lost profits  incurred or suffered by Tenant.  Landlord  shall be responsible at
Landlord's  sole cost and expense to repair any damage to the Premises caused by
Landlord's  or  Landlord's  Agents'  negligence,  willful  acts or  omissions or
default.

         9.2. Tenant's  Maintenance and Repair Obligations.  Except as otherwise
provided,  Tenant shall at all times during the Term of this Lease,  at Tenant's
sole  cost and  expense,  clean,  keep,  maintain,  repair  and  make  necessary
improvements  to, the  Building  and every  part  thereof  and all  improvements
therein or thereto,  in good and sanitary  order and condition to the reasonable
satisfaction  of Landlord and in compliance with all Applicable  Laws.  Tenant's
repair and maintenance obligations herein shall include, but are not limited to,
all necessary  maintenance and repairs to all portions of the Building,  and all
exterior entrances, all glass, windows, window casements,  show window moldings,
partitions,  doors, doorjambs,  door closures,  hardware,  fixtures,  electrical
lighting and outlets,  plumbing  fixtures,  sewage  facilities,  interior walls,
floors,  ceilings,  skylights,  fans and exhaust  equipment,  fire  extinguisher
equipment and systems,  the roof of the Building,  all HVAC  equipment,  and all
repairs to Specialized HVAC (as hereinafter defined). As part of its maintenance
obligations  hereunder,  Tenant shall, at Landlord's  request,  provide Landlord
with  copies of all  maintenance  schedules  regarding  the  maintenance  of the
Building, reports and notices prepared by, for, or on behalf of Tenant. Landlord
may impose  reasonable  restrictions and requirements with respect to repairs by
Tenant,  which repairs shall be at least equal in quality to the original  work,
and the  provisions  of Section  8.3 shall apply to all such  repairs.  Tenant's
obligation  to  repair  includes  the  obligation  to  replace,   as  necessary,
regardless of whether 

                                      -13-
<PAGE>

the benefit of such  replacement  extends beyond the Term,
subject, however, to the following: So long as:

         1.       Tenant is not in default;

         2.       Tenant  submits  reasonably   satisfactory  evidence  of  
                  payment  and maintenance,  including  without  limitation  
                  copies of all  invoices, receipts, maintenance records and the
                  like; and 

         3.       All systems,  equipment and other items or things provided  
                  herein or contemplated  hereby are in good condition, working 
                  order and otherwise in compliance with the terms of this 
                  Lease;

as soon as reasonably  possible after the expiration of the Lease Term, Landlord
shall (partially) reimburse Tenant for the reasonable cost of a replacement item
pro rata based upon Landlord's  reasonable  determination of that portion of the
useful life of such item which will extend beyond the Term, provided that, prior
to making any expenditure for such replacement item:

         A.       Tenant notifies Landlord in writing of Tenant's desire to 
                  replace the item;

         B.       Tenant provides to Landlord  adequate  information  concerning
                  the reasonable  cost,  anticipated useful life, type of item 
                  to be used as a replacement (name,  model number,  etc.) and 
                  such other information as Landlord shall reasonably request; 
                  and

         C.       Landlord  consents  to  reimburse  a portion  of the cost of 
                  such  replacement  item as  provided herein.

Such consent  pursuant to provision C shall not to be  unreasonably  withheld or
delayed,  but shall only be required to be given after  Landlord  receives  from
Tenant the written notice and other information contemplated by provisions A and
B above,  which must actually be received by Landlord at least five (5) business
days  prior  to   Tenant's   proposed   purchase   of  the   replacement   item.
Notwithstanding  the fact  that  Landlord  shall  make its  determination  as to
whether  or not a  replacement  item is  eligible  for  (partial)  reimbursement
pursuant to the foregoing  provisions  within five(5) business days after actual
receipt of the written notice and other information contemplated by provisions A
and B above,  Landlord  need not make a  determination  as to or pay the  actual
amount  of such  (partial)  reimbursement  until  the  expiration  of the  Term,
Tenant's  qualification for the (partial)  reimbursement  pursuant to provisions
1,2 and 3 above and after Landlord's inspection of the then current condition of
the relevant replacement item to be conducted  immediately after the end of said
Term,  Landlord's  reasonable  determination of the remaining useful life of the
replacement  item. Any special or  above-standard  heating,  ventilating and air
conditioning   installed  by,  on  behalf  of,  or  at  the  request  of  Tenant
("Specialized  HVAC"),  shall be paid for and  maintained  by Tenant at Tenant's
sole cost and expense.  Notwithstanding  the foregoing,  Landlord shall have the
right,  upon Notice to Tenant, to undertake the  responsibility  for maintenance
and repair of automatic fire extinguisher  equipment,  such as sprinkler systems
and alarms,  Specialized  HVAC and other  obligations of Tenant  hereunder which
Landlord deems  appropriate to undertake,  in which event the cost thereof shall
be included as part of Maintenance Expenses and paid by Tenant in the manner set
forth in Section 7.1.

         9.3  Waiver.  Tenant  hereby  waives  all  rights  provided  for by the
provisions of Sections1941 and 1942 of the California Civil Code and any present
or future  laws  regarding  Tenant's  right to make  repairs  at the  expense of
Landlord or to terminate this Lease because of the condition of the Premises.

         9.4  Self-Help.  If Tenant  refuses or fails to repair and maintain the
Premises  as  required  hereunder  within  ten (10)  days from the date on which
Landlord makes a written demand on Tenant to effect such repair and maintenance,
Landlord  may enter upon the  Premises  and make such  repairs  or perform  such
maintenance  without  liability to Tenant for any loss or damage that may accrue
to Tenant or its merchandise, fixtures or other property or to Tenant's business
by reason  thereof,  unless  due to the  negligence  or  willful  misconduct  of
Landlord.  All sums reasonably  disbursed,  deposited or incurred by Landlord in
connection  with such repairs or  maintenance,  plus percent (5%) for  overhead,
shall be due and payable by Tenant to Landlord,  as an item of Additional  Rent,
on demand by Landlord,  together  with interest at the  Applicable  Rate on such
aggregate amount from the date of such demand until paid by Tenant.


                                    ARTICLE X

                             COMMON AREA AND PARKING

In the event that the  Building  becomes  multi-tenanted,  the  following  shall
apply.

         10.1 Grant of  Nonexclusive  Common Area  License  and Right.  Landlord
hereby  grants to Tenant and its permitted  subtenants,  in common with Landlord
and all persons,  firms and corporations  conducting business in the Project and
their respective customers,  guests, licenses, invitees,  subtenants,  employees
and agents, the nonexclusive license and right to use the Common Area within the
Project for vehicular parking, for pedestrian and vehicular ingress,  egress and
travel,  and for such other  purposes  and for doing such other things as may be
provided for, authorized and/or permitted by the Restrictions, such nonexclusive
license and right to be appurtenant to Tenant's leasehold estate created by this
Lease. The nonexclusive license and rights granted pursuant to the provisions of
this  ArticleX  shall be subject to the  provisions of the  Restrictions,  which
pertaining  any way to the Common  Area  covered by such  Restrictions,  and the
provisions of this Lease.

                                      -14-
<PAGE>

         10.2 Use of  Common  Area.  Notwithstanding  anything  to the  contrary
herein, Tenant and its successors, assigns, employees, agents and invitees shall
use  the  Common  Area  only  for  the  purposes  permitted  hereby  and  by the
Restrictions and the Rules and Regulations. All uses permitted within the Common
Area shall be  undertaken  with reason and judgment so as not to interfere  with
the primary use of the Common Area which is to provide parking and vehicular and
pedestrian  access throughout the Common Area within the Project and to adjacent
public streets for the Landlord,  Landlord's Agents, its tenants, subtenants and
all persons,  firms and corporations  conducting business within the Project and
their  respective  customers,  guests and  licensees.  In no event shall  Tenant
erect,  install,  or place,  or cause to be  erected,  installed,  or placed any
structure,  building,  trailer,  fence, wall, signs or other obstructions on the
Common Area except as otherwise  permitted herein and in the  Restrictions,  and
Tenant  shall not store or sell any  merchandise,  equipment or materials on the
Common Area.

         10.3 Control of Common Area. Subject to provisions of the Restrictions,
all Common Area and all improvements located from time to time within the Common
Area shall at all times be subject to the  exclusive  control and  management of
the Landlord.  Landlord shall have the right to construct,  maintain and operate
lighting  facilities within the Common Area; to police the Common Area from time
to time;  to change the area,  level,  location and  arrangement  of the parking
areas and other  improvements  within the Common  Area;  to restrict  parking by
tenants,  their  officers,  agents and employees to employee  parking areas;  to
enforce parking  charges (by operation of meters or otherwise);  to close all or
any portion of the Common Area or improvements therein to such extent as may, in
the  opinion  of  counsel  for  Landlord,  be  legally  sufficient  to prevent a
dedication  thereof or the  accrual of any rights to any person or to the public
therein;  to close  temporarily all or any portion of the Common Area and/or the
improvements  thereon; to discourage  noncustomer parking; and to do and perform
such other acts in and to said Common Area and  improvements  thereon as, in the
use of good business judgment, Landlord shall determine to be advisable.

         10.4  Maintenance  of Common Area.  Landlord shall operate and maintain
(or cause to be  operated  and  maintained)  the  Common  Area in a  first-class
condition,  in such manner as Landlord in its sole  discretion  shall  determine
from time to time. Without limiting the scope of such discretion, Landlord shall
have the full  right and  authority  to  employee  or cause to be  employed  all
personnel and to make or cause to be made all rules and  regulations  pertaining
to or necessary for the proper  operation and maintenance of the Common Area and
the  improvements  located  thereon.  The cost of such maintenance of the Common
Area shall be included as part of Project Costs.  No part of the Common Area may
be used for the storage of any items,  including without  limitation,  vehicles,
materials,  inventory and equipment.  All trash and other refuse shall be placed
in designated  receptacles.  No work of any kind including,  but not limited to,
painting,  drying,  cleaning,  repairing,  manufacturing,  assembling,  cutting,
merchandising or displaying shall be permitted upon the Common Area.

         10.5 Revocation of License.  All Common Area and  improvements  located
thereon which Tenant is permitted to use and occupy  pursuant to the  provisions
of this Lease are to be used and occupied  under a revocable  license and right,
and if any  such  license  be  revoked,  or if  the  amount  of  such  areas  be
diminished,  Landlord  shall not be subject to any liability nor shall Tenant be
entitled to compensation or diminution or abatement of Rent, and such revocation
or diminution of such areas shall not be deemed constructive or actual eviction.
It  is  understood  and  agreed  that  the   condemnation  or  other  taking  or
appropriation  by any  public  or  quasi-public  authority,  or  sale in lieu of
condemnation,  of all or any portion of the Common Area shall not  constitute  a
violation of Landlord's agreements  hereunder,  and Tenant shall not be entitled
to participate in or make any claim for any award or other condemnation proceeds
arising   from  any  such   taking  or   appropriation   of  the  Common   Area.
Notwithstanding  the foregoing,  so long as no Event of Default has occurred and
is continuing,  Landlord  shall provide to Tenant the number of vehicle  parking
spaces set forth in Item15 of the Basic  Lease  Provisions  throughout  the Term
(subject to the rights of Landlord under this ArticleX).

         10.6  Landlord's  Reserved  Rights.  Landlord  reserves  the  right  to
install,  use, maintain,  repair,  relocate and replace pipes, ducts,  conduits,
wires and appurtenant  meters and equipment  included in the Premises or outside
the  Premises,  change the  boundary  lines of the  Project  and  install,  use,
maintain,  repair,  alter or  relocate,  expand and  replace  any  Common  Area;
provided,  however,  Landlord shall not unreasonably interfere with Tenant's use
of the Premises.  Such rights of Landlord shall include, but are not limited to,
designating from time to time certain portions of the Common Area as exclusively
for the benefit of certain tenants in the Project.

         10.7 Parking. Tenant shall be entitled to the number of vehicle parking
spaces set forth in Item15 of the Basic Lease Provisions,  which spaces shall be
unreserved and  unassigned,  on those portions of the Common Area  designated by
Landlord for parking. Tenant shall not use more parking spaces than such number.
All  parking  spaces  shall be used only for  parking by vehicles no larger than
full-size passenger  automobiles pick-up trucks or delivery trucks. Tenant shall
not permit or allow any vehicles  that belong to or are  controlled by Tenant or
Tenant's employees,  suppliers,  shippers,  customers, or invitees to be loaded,
unloaded,  or parked in areas other than those  designated  by Landlord for such
activities.  If  Tenant  permits  or  allows  any of the  prohibited  activities
described above, then Landlord shall have the right, without notice, in addition
to such other rights and remedies  that Landlord may have, to remove or tow away
the  vehicle  involved  and  charge  the cost to  Tenant,  which  cost  shall be
immediately  payable  upon demand by  Landlord.  Parking  within the Common Area
shall be limited to striped parking stalls, and no parking shall be permitted in
any driveways, accessways or in any area which would prohibit or impede the free
flow of traffic  within the Common Area. If Tenant parks  vehicles  overnight at
the Project, Tenant shall indemnify,  defend and hold Landlord free and harmless
of,  from and  against  any and all claims,  demands,  suits,  damages,  losses,
liabilities,  costs,  and/or expenses  (including  reasonable  attorneys'  fees)
arising out of,  resulting  from or incurred in  connection  with the  overnight

                                      -15-
<PAGE>

parking of  vehicles  at the  project.  Vehicles  which have been  abandoned  or
parking  in  violation  of the terms  hereof  may be towed  away at the  owner's
expense.

                                   ARTICLE XI
                             INDEMNITY AND INSURANCE

         11.1  Indemnification.  To the fullest extent  permitted by law, Tenant
hereby  agrees to defend (with  attorneys  reasonably  acceptable  to Landlord),
indemnify,  protect and hold  harmless  Landlord and  Landlord's  Agents and any
successors  to all or any portion of  Landlord's  interest in the  Premises  and
their   directors,    officers,   partners,   employees,    authorized   agents,
representatives, affiliates and Mortgagees, from and against any and all damage,
loss,  claim,  liability  and expense  including,  but not  limited  to,  actual
attorneys'  fees and legal costs,  incurred  directly or indirectly by reason of
any claim,  suit or judgment brought by or on behalf of (i)any person or persons
for  damage,  loss or  expense  due to, but not  limited  to,  bodily  injury or
property  damage  sustained  by such  person or persons  which arise out of, are
occasioned  by, or are in any way  attributable  to the use or  occupancy of the
Premises or the acts or omissions  of the Tenant or Tenant's  Agents in or about
the Premises or the Project (including, but not limited to, any Event of Default
hereunder), or (ii)Tenant or Tenant's Agents for damage, loss or expense due to,
but not limited to,  bodily  injury or property  damage  which arise out of, are
occasioned  by, or are in any way  attributable  to the use of any of the Common
Area,  except to the  extent  caused by the sole  active  negligence  or willful
misconduct of Landlord.

         11.2.  Property  Insurance.  Landlord  shall  obtain  and keep in force
during  the Term,  (i) an "all  risk" or  "special  causes of  action"  property
policy,  including  earthquake and flood, in the amount of the full  replacement
cost  covering the  Premises,  the  Building  and objects  owned by Landlord and
normally covered under a "Boiler and Machinery"  policy and any Alterations made
by or at the  request of Tenant,  and (ii) an "all risk" or  "special  causes of
action" policy of business interruption and/or loss of income insurance covering
a period of one (1) year, with loss payable to Landlord to the extent of Monthly
Rent and Additional  Rent only.  Tenant shall within ten (10) days of receipt of
Landlord's invoice or statement for such insurance pay or reimburse Landlord the
cost of same such  insurance  in an amount  not to exceed Six  Thousand  Dollars
($6,000.00)  per year.  Tenant shall maintain and keep in force at its sole cost
and expense insurance covering its Personal Property.

         11.3  Liability/Miscellaneous  Insurance. Tenant shall maintain in full
force and  effect at all times  during the Term  (plus  such  earlier  and later
periods as Tenant may be in  occupancy  of the  Premises),  at its sole cost and
expense,  for the  protection  of Tenant,  Landlord  and  Landlord's  Agents and
Mortgagees,  policies of insurance issued by a carrier or carriers in accordance
with Section 11.8 which afford the following  coverages:  (i)statutory  workers'
compensation,  (ii)employer's  liability  with  minimum  limits of Five  Hundred
Thousand Dollars ($500,000), and (iii)comprehensive/commercial general liability
including,  but not limited to,  blanket  contractual  liability  (including the
indemnity set forth in Section11.1),  fire and water legal liability, broad form
property damage,  personal injury,  completed  operations,  products  liability,
independent contractors,  and, if alcoholic beverages are served, or sold in the
Premises,  comprehensive Host Liquor Liability Insurance,  and owned,  non-owned
and hired vehicles, of not less than the limits set forth in Item17 of the Basic
Lease  Provisions  (or current  limit  carried,  whichever is  greater),  naming
Landlord,  the  Mortgagees,  and the Additional  Insureds named in Item16 of the
Basic Lease Provisions as additional  insureds,  and including a cross-liability
or severability interests indorsement.

         11.4 Hazardous  Materials.  In the event Landlord  consents to Tenant's
use,  generation  or  storage  of  Hazardous  Materials  on,  under or about the
Premises  pursuant to Section6.2,  and if at any time Tenant's net worth is less
than Twenty-Five Million Dollars (25,000,000.00),  Landlord shall have the right
to require  Tenant,  at Tenant's  sole cost and expense,  to purchase  insurance
specified  and approved by Landlord,  with coverage of no less than Five Million
Dollars ($5,000,000),  insuring (i)any Hazardous Materials shall be removed from
the Premises,  (ii)the Premises shall be restored to a clean, neat,  attractive,
healthy, safe and sanitary condition, and (iii)any liability of Tenant, Landlord
and Landlord's Agents arising from such Hazardous Materials.

         11.5 Deductibles;  Blanket Coverage.  Any policy of Property  Insurance
required pursuant to this Lease containing a deductible  exceeding Five Thousand
Dollars ($5,000) per occurrence must be approved in writing by Landlord prior to
the issuance of such policy, which approval shall not be unreasonably  withheld.
Tenant  shall be solely  responsible  for the  payment  of any  deductible.  Any
Property  Insurance required of Tenant pursuant to this Lease may be provided by
means  of  a  so-called  "blanket  policy",  so  long  as  (i)the  Premises  are
specifically covered (by rider, endorsement or otherwise), (ii)the limits of the
policy are applicable on a "per location"  basis to the Premises and provide for
restoration of the aggregate limits, and (iii)the policy otherwise complies with
the provisions of this Lease.

         11.6 Increased Coverage.  In the event that Tenant exercises its Option
to Extend as defined in the Rider No. 1 to Lease attached  hereto,

                                      -16-
<PAGE>

Tenant shall provide Landlord,  at Tenant's expense,  with such increased amount
of existing  insurance,  and such other  insurance as Landlord or the Mortgagees
may reasonably require, in coverages and amounts comparable to similar users and
buildings in the general area.

         11.7  Sufficiency of Coverage.  Neither  Landlord nor any of Landlord's
Agents makes any representation that the types of insurance and limits specified
to be carried by Tenant  under this Lease are  adequate  to protect  Tenant.  If
Tenant believes that any such insurance  coverage is insufficient,  Tenant shall
provide, at its own expense, such additional insurance as Tenant deems adequate.
Nothing  contained  herein shall limit Tenant's  liability under this Lease, and
Tenant's  liability  under  any  provision  of  this  Lease,  including  without
limitation under any indemnity provisions, shall not be limited to the amount of
any insurance obtained.

         11.8  Insurance   Requirements.   Tenant's  insurance  (i)shall  be  in
accordance with the above  requirements and shall be carried with companies that
have a Best's policyholder's rating of not less than "A", (ii)shall provide that
such policies shall not be subject to cancellation  except after at least thirty
(30) days prior written notice to Landlord,  and (iii)shall be primary,  and any
insurance  carried by Landlord or  Landlord's  Agents shall be  noncontributing.
Tenant's  policy or policies,  or duly executed  certificates  for them shall be
deposited with Landlord prior to the Commencement Date. Prior to renewal of such
policies  a  binder  evidencing  continued  coverage  shall  be  deposited  with
Landlord,  which binder shall be replaced by a certificate  of insurance  within
sixty (60) days. If Tenant fails to procure and maintain the insurance  required
to be  procured  by Tenant  under this  Lease,  Landlord  may,  but shall not be
required  to,  order such  insurance at Tenant's  expense.  All sums  reasonably
disbursed,  deposited or incurred by Landlord in connection therewith including,
but not limited to, all costs, expenses and actual attorneys' fees, shall be due
and payable by Tenant to Landlord,  as an item of Additional  Rent, on demand by
Landlord, together with interest thereon at the Applicable Rate from the date of
such demand until paid by Tenant.  Notwithstanding  the  foregoing,  if Landlord
orders such insurance on Tenant's  behalf,  and Tenant did in fact maintain such
insurance  without  interruption as required in this Section 11.8, then Landlord
shall bear the cost of the insurance that Landlord ordered on Tenant's behalf.

         11.9 Landlord's  Disclaimer.  Notwithstanding  any other  provisions of
this Lease, and to the fullest extent permitted by law,  Landlord and Landlord's
Agents  shall  not be  liable  for any loss or damage  to  persons  or  property
resulting from theft, vandalism, fire, explosion, falling materials, glass, tile
or sheetrock,  steam,  gas,  electricity,  water or rain which may leak from any
part of the Premises, or from the pipes, appliances or plumbing works therein or
from the roof,  street or subsurface or  whatsoever,  unless caused by or due to
the sole active negligence or willful misconduct of Landlord.  Tenant shall give
prompt  Notice to Landlord in case of a casualty,  accident or repair  needed to
the Premises.

         11.10 Waiver of Subrogation.  Landlord and Tenant each hereby waive all
rights of recovery against the other and against the officers, employees, agents
and  representatives of the other, on account of loss by or damage to any person
or the waiving party's property or the property of others under its control,  to
the  extent  that  such loss or damage  is  

                                      -17-
<PAGE>

insured  against  under any fire and extended  coverage  insurance  policy which
either  may  have or is  required  to have in  force  at the time of the loss or
damage.  Landlord  and Tenant shall each obtain from their  respective  insurers
under all policies of fire, theft, public liability, worker's compensation,  and
other insurance  maintained during the Term of this Lease covering the Building,
or any portion of it, or operations in it, a waiver of all rights of subrogation
that the insurer of one party might have against the other  party.  Landlord and
Tenant shall each  indemnify  the other  against any loss or expense,  including
reasonable attorney's fees, resulting from the failure to obtain this waiver.

                                   ARTICLE XII

                              DAMAGE OR DESTRUCTION

         12.1 Landlord's  Obligation to Rebuild.  If the Premises are damaged or
destroyed by fire or other casualty (a  "Casualty"),  Tenant shall promptly give
notice thereof to Landlord, and Landlord shall thereafter repair the Premises as
set forth in  Sections12.4  and 12.5 unless  Landlord has the right to terminate
this Lease as provided in  Section12.2  and  Landlord  elects to so terminate or
Tenant has the right to  terminate  this Lease as  provided in  Section12.3  and
Tenant elects to so terminate.

         12.2  Landlord's  Right to Terminate.  Landlord shall have the right to
terminate  this Lease  following  a  Casualty  if any of the  following  occurs:
(i)insurance proceeds (together with any additional amounts Tenant elects, at is
option,  to contribute) are not available to Landlord to pay one hundred percent
(100%) of the cost to fully repair the Premises,  excluding the deductible  (for
which  Tenant  shall  pay  Tenant's  share  of such  deductible;  (ii)Landlord's
Architect  determines that the Premises cannot,  with reasonable  diligence,  be
fully repaired by Landlord (or cannot be safely repaired because of the presence
of  hazardous  factors  including,  but not  limited  to,  Hazardous  Materials,
earthquake faults,  radiation,  chemical waste and other similar dangers) within
one hundred eighty (180) days after the date of such Casualty; (iii)the Premises
are  destroyed  or damaged  during the last twelve  (12) months of the Term;  or
(iv)an  Event of Default  has  occurred  and is  continuing  at the time of such
Casualty and  continues  unabated for thirty (30) days  thereafter.  If Landlord
elects  to  terminate  this  Lease   following  a  Casualty   pursuant  to  this
Section12.2,  Landlord  shall give Tenant  Notice of its  election to  terminate
within thirty (30) days after Landlord has knowledge of such Casualty,  and this
Lease shall terminate fifteen (15) days after the date of such Notice.

         12.3 Tenant's  Right to Terminate.  Subject to the latter terms hereof,
Tenant shall have the right to terminate this Lease following the destruction of
the Premises (or damage to the  Premises so extensive as to  reasonably  prevent
Tenant's  substantial use and enjoyment of the Premises) if any of the following
occurs: (i)the Premises cannot, with reasonable diligence,  be fully repaired by
Landlord  within  two  hundred  (200)  days  after  the  date of the  damage  or
destruction,  as determined by Landlord's  Architect;  (ii)the  Premises  cannot
safely be repaired  because of the  presence  of  hazardous  factors,  including
Hazardous  Materials,  earthquake  faults,  radiation,  chemical waste and other
similar dangers; or (iii)the damage or destruction occurs during the last twelve
(12) months of the Term and cannot, with reasonable diligence, be fully repaired
by Landlord within ninety (90) days after the date of the destruction or damage,
as determined by Landlord's  Architect.  Notwithstanding  the foregoing,  Tenant
shall not have the right to terminate  under this  Section12.3 if (a)an Event of
Default has occurred and is continuing at the time of such damage or destruction
or at the time of  exercising  the  right to  terminate,  or  (b)the  damage  or
destruction was caused,  in whole or in part, by the act or omission of Tenant's
or Tenant's  Agents.  If Tenant elects to terminate  this Lease pursuant to this
Section12.3,  Tenant  shall give  Landlord  Notice of its  election to terminate
within thirty (30) days after the date of such damage or  destruction,  and this
Lease shall terminate fifteen (15) days after the date of such Notice.

         12.4 Effect of  Termination.  If this Lease is  terminated  following a
Casualty pursuant to Section12.2 or Section12.3,  Landlord shall, subject to the
rights of the  Mortgagees,  be entitled to receive and retain all the  insurance
proceeds  resulting  from or  attributable  to such  Casualty,  except for those
proceeds  payable under policies  obtained by Tenant which  specifically  insure
Tenant's  Personal  Property.  If  neither  party  exercises  any such  right to
terminate  this Lease,  this Lease will  continue in full force and effect,  and
Landlord shall,  promptly  following the tenth (10th) day after the date of such
Casualty  and receipt of the  amounts  set forth in clause (i) of Section  12.2,
commence the process of obtaining necessary permits and approvals for the repair
of the  Premises,  and  shall  commence  such  repair  and  prosecute  the  same
diligently  to completion as soon  thereafter  as is  practicable.  Tenant shall
fully  cooperate with Landlord in removing  Tenant's  Personal  Property and any
debris from the Premises to facilitate the making of such repairs.

         12.5 Limited  Obligation to Repair.  Landlord's  obligation,  should it
elect or be  obligated  to repair the  Premises  following a Casualty,  shall be
limited to the basic Building and Tenant  Improvements  and Tenant shall, at its
expense,  replace  or  fully  repair  all  Tenant's  Personal  Property  and any
Alterations  installed by Tenant  existing at the time of such Casualty.  If the
Premises are to be repaired in accordance with the foregoing,  Tenant shall make
available to Landlord any portion of  insurance  proceeds it receives  which are
allocable to the Tenant Improvements.

         12.6  Abatement  of Monthly  Rent.  During  any period  when a mutually
agreed  upon  third  party  architect   reasonably   determines  that  there  is
substantial  interference  with  Tenant's  use of the  Premises  by  reason of a
Casualty,  Monthly Rent shall be temporarily  abated in proportion to the degree
of such  substantial  interference,  but  only  to the  extent  of any  business
interruption  or loss of income  insurance  proceeds  received by Landlord  from
Tenant's insurance described in Section11.2.  Such abatement shall commence upon
the date  Tenant  notifies  Landlord  of such  Casualty  and  shall end upon the

                                      -18-
<PAGE>

Substantial  Completion of the repair of the Premises which Landlord  undertakes
or is  obligated  to  undertake  hereunder.  Tenant shall not be entitled to any
compensation  or  damages  from  Landlord  for loss of the use of the  Premises,
Tenant's Personal Property or other damage or any inconvenience  occasioned by a
Casualty or by the repair or restoration of the Premises thereafter,  including,
but not limited to, any consequential damages, opportunity costs or lost profits
incurred  or  suffered  by  Tenant.  Tenant  hereby  waives  the  provisions  of
Section1932(2)  and  Section1933(4)  of  the  California  Civil  Code,  and  the
provisions of any similar or successor statues.

         12.7 Landlord's  Determination.  The  determination  in good faith by a
mutually  agreed upon third party architect of or relating to the estimated cost
of repair of any damage,  replacement  cost, the time period required for repair
or the  interference  with or  suitability  of the  Premises for Tenant's use or
occupancy shall be conclusive for purposes of this ArticleXII and ArticleXIII.


                                  ARTICLE XIII

                                  CONDEMNATION

         13.1 Total  Taking--Termination.  If title to the  Premises  or so much
thereof  is taken for any  public or  quasi-public  use under any  statute or by
right of eminent domain so that  reconstruction  of the Premises will not result
in the Premises being reasonably  suitable for Tenant's continued  occupancy for
the uses and purposes  permitted by this Lease, this Lease shall terminate as of
the date possession of the Premises or part thereof is so taken.

         13.2  Partial  Taking.  If any part of the  Premises  is taken  for any
public or  quasi-public  use under any statute or by right of eminent domain and
the remaining part is reasonably  suitable for Tenant's continued  occupancy for
the uses  permitted by this Lease,  this Lease  shall,  as to the part so taken,
terminate as of the date that  possession  of such part of the Premises is taken
and the Monthly Rent shall be reduced in the same proportion than the floor area
of the portion of the Premises so taken (less any addition  thereto by reason of
any  reconstruction)  bears  to the  original  floor  area of the  Premises,  as
reasonably  determined by Landlord or Landlord's  Architect.  Landlord shall, at
its own cost and  expense,  make all  necessary  repairs or  alterations  to the
Premises  so as to make  the  portion  of the  Premises  not  taken  a  complete
architectural  unit. Such work shall not, however,  exceed the scope of the work
done by Landlord in originally  constructing the Premises.  If severance damages
from the  condemning  authority  are not  available  to Landlord  in  sufficient
amounts to permit  such  restoration,  Landlord  may  terminate  this Lease upon
Notice to Tenant.  Monthly Rent due and payable  hereunder  shall be temporarily
abated during such restoration period in proportion to the degree to which there
is  substantial  interference  with Tenant's use of the Premises,  as reasonably
determined  by Landlord or  Landlord's  Architect.  Each party hereby waives the
provisions of  Section1265.130 of the California Code of Civil Procedure and any
present or future law allowing  either  party to petition the Superior  Court to
terminate  this  Lease in the  event of a  partial  taking  of the  Building  or
Premises.

         13.3 No  Apportionment  of Award.  Any award for any  partial  or total
taking shall be  apportioned  between the  respective  interests of Landlord and
Tenant in accordance with California law.

         13.4 Temporary  Taking.  No temporary taking of the Premises (which for
purposes  hereof  shall mean a taking of all or any part of the Premises for one
hundred eighty (180) days or less) shall terminate this Lease or give Tenant any
right to any  abatement  of Rent.  Any award  made to Tenant by reason  for such
temporary  taking  shall  belong  entirely to Tenant and  Landlord  shall not be
entitled to share therein. Each party agrees to execute and deliver to the other
all  instruments  that may be  required to  effectuate  the  provisions  of this
Section13.4.

         13.5 Sale Under  Threat of  Condemnation.  A sale made in good faith to
any  authority  having  the power of  eminent  domain,  either  under  threat of
condemnation or while  condemnation  proceedings are pending,  shall be deemed a
taking under the power of eminent domain for all purposes of this ArticleXIII.


                                   ARTICLE XIV

                            ASSIGNMENT AND SUBLETTING

         14.1 Prohibition. Tenant shall not directly or indirectly,  voluntarily
or by  operation  of  law,  assign  (which  term  shall  include  any  transfer,
assignment,  pledge,  mortgage or  hypothecation)  this  Lease,  or any right or
interest  hereunder,  or sublet the Premises or any part  thereof,  or allow any
other person or entity to occupy or use all or any part of the Premises  without
first obtaining the written consent of Landlord in each instance,  which consent
shall not be unreasonably withheld. No assignment,  encumbrance,  subletting, or
other transfer in violation of the terms of this Article XIV, whether  voluntary
or  involuntary,  by operation of law,  under legal process or  proceedings,  by
receivership,  in bankruptcy,  or otherwise  shall be valid or effective and, at
the option of Landlord,  shall  constitute an Event of Default under this Lease.
To the extent not  prohibited by provisions of the  Bankruptcy  Code of 1978, 11
U.S.C. 

                                      -19-
<PAGE>

Section  101 et seq.  (the  "Bankruptcy  Code"),  Tenant on  behalf  of  itself,
creditors,  administrators  and  assigns  waives the  applicability  of Sections
541(c) and 365(e) of the  Bankruptcy  Code unless the  proposed  assignee of the
trustee for the estate of the bankrupt meets Landlord's standards for consent as
set forth role.  Landlord  has  entered  into this Lease with Tenant in order to
obtain for the benefit of the project the unique attraction of Tenant's name and
business;  the  foregoing  prohibition  on assignment or subletting is expressly
agreed to by Tenant in  consideration of such fact. If this Lease is assigned to
any person or entity pursuant to the provisions of the Bankruptcy  Code, any and
all monies or other  considerations  payable or  otherwise  to be  delivered  in
connection with such assignment shall be paid or delivered to Landlord, shall be
and remain the exclusive property of Landlord and shall not constitute  property
of Tenant or the estate of Tenant within the meaning of the Bankruptcy Code. Any
and all monies or other  considerations  constituting  Landlord's property under
the proceeding sentence not paid or delivered to Landlord shall be held in trust
for the benefit of Landlord and be promptly  paid or delivered to Landlord.  Any
person or entity to which this Lease is assigned  pursuant to the  provisions of
the Bankruptcy  Code shall be deemed without further act or deed to have assumed
all of the  obligations  arising  under this Lease on and after the date of such
assignment.  Any such assignee shall upon demand execute and earlier to Landlord
an instrument confirming such assumption.

         14.2  Landlord's  Consent.  In  the  event  Landlord  consents  to  any
assignment or  subletting,  such consent shall not constitute a waiver of any of
the  restrictions of this ArticleXIV and the same shall apply to each successive
assignment or subletting hereunder, if any. In no event shall Landlord's consent
to an assignment or subletting affect the continuing primary liability of Tenant
(which, following assignment,  shall be joint and several with the assignee), or
relieve Tenant of any of its  obligations  hereunder  without an express written
release being given by Landlord.  In the event that Landlord shall consent to an
assignment or subletting  under this  ArticleXIV,  such assignment or subletting
shall not be effective  until the assignee or sublessee  shall assume all of the
obligations  of this Lease on the part of Tenant to be performed or observed and
whereby the assignee or sublessee  shall agree that the provisions  contained in
this Lease shall, notwithstanding such assignment or subletting,  continue to be
binding upon it with respect to all future  assignments  and  sublettings.  Such
assignment or sublease  agreement shall be duly executed and fully executed copy
thereof  shall be delivered to Landlord,  and Landlord may collect  Monthly Rent
and  Additional  Rent due  hereunder  directly  from the assignee or  sublessee.
Collection  of Monthly Rent and  Additional  Rent  directly  from an assignee or
sublessee  shall not  constitute a recognition  of such assignee or sublessee as
the Tenant  hereunder or a release of Tenant from the  performance of all of its
obligations hereunder.

         14.3 Information.  Regardless of whether Landlord's consent is required
under this  ArticleXIV,  Tenant  shall  notify  Landlord  in writing of Tenant's
intent to assign this Lease or any right or interest  hereunder,  or to sublease
the Premises or any part  thereof,  and of the name of the proposed  assignee or
sublessee,  the nature of the proposed assignee's or sublessee's  business to be
conducted on the Premises,  the terms and provisions of the proposed  assignment
or sublease,  a copy of the proposed assignment or sublease form, and such other
information as Landlord may reasonably  request concerning the proposed assignee
or sublessee  including,  but not limited to, net worth,  income  statements and
other financial  statements for a two-year period preceding Tenant's request for
consent,  evidence of insurance complying with the requirements of ArticleXI,  a
completed  Environmental  Questionnaire from the proposed assignee or sublessee,
and the fee described in Section14.7.

         14.4 Standard for Consent.  Landlord shall,  within thirty (30) days of
receipt of such Notice and all information  requested by Landlord concerning the
proposed assignee or sublessee, elect to take one of the following actions:

                  (a) consent to such proposed assignment or sublease;

                  (b) refuse to consent to such  proposed  assignment  or 
sublease,  which refusal shall be on reasonable grounds; or

                  (c) if Tenant proposes to sublease all or part of the Premises
for the entire  remaining Term,  Landlord may, at its option exercised by thirty
(30) days Notice to Tenant,  elect to recapture  such portion of the Premises as
Tenant proposes to sublease and as of the thirtieth (30th) day after Landlord so
notifies  Tenant of its election to recapture,  this Lease shall terminate as to
the portion of the premises  recaptured  and the Monthly Rent payable under this
Lease  shall be  reduced  in the same  proportion  that the  floor  area of that
portion of the  Premises so  recaptured  bears to the floor area of the Premises
prior to such recapture.

         Tenant agrees, by way of example and without limitation,  that it shall
not  be  unreasonable  for  Landlord  to  withhold  its  consent  to a  proposed
assignment or subletting if any of the following situations exist or may exist:

                        (i) Landlord  determines that the proposed assignee's or
sublessee's use of the Premises  conflicts with ArticleV or ArticleVI,  presents
an unacceptable  risk, as determined by Landlord,  under ArticleVI (and Landlord
may  require  such   assignee  or   sublessee  to  complete  the   Environmental
Questionnaire  in the  manner  described  in  Section6.5  prior to  making  such
determination), or conflicts with any other provision under this Lease;

                        (ii) Landlord  determines that the proposed  assignee or
sublessee is not as financially responsible as Tenant as of the date of Tenant's
request  for  consent  or as  of  the  effective  date  of  such  assignment  or
subletting;

                        (iii) Landlord  determines that the proposed assignee or
sublessee lacks sufficient  business  reputation or experience to conduct on the
Premises a business of a type and quality equal to that conducted by Tenant;

                                      -20-
<PAGE>


                        (iv) Landlord determines that the proposed assignment or
subletting  would  breach a covenant,  condition  or  restriction  in some other
lease,  financing  agreement or other  agreement  relating to the  Project,  the
Building, the Premises or this Lease;

                        (v) Landlord  determines  that the proposed  assignee or
sublessee (a) has been required by any prior  landlord,  lender or  governmental
authority  to take  remedial  action  in  connection  with  Hazardous  Materials
contaminating  a  property  if such  contamination  resulted  from the  proposed
assignee's or sublessee's actions or use of the property in questions, or (b) is
subject  to  any  enforcement  order  issued  by an  governmental  authority  in
connection with the use, disposal or storage of a Hazardous Material; or

                        (vi) An Event of Default has occurred and is  continuing
at the time of Tenant's request for Landlord's  consent,  or as of the effective
date of such assignment or subletting.

                  Tenant  acknowledges  that if  Tenant  has any  exterior  sign
rights  under this  Lease,  such  rights are  personal  to Tenant and may not be
assigned  or  transferred  to any  assignee  of this Lease or  sublessee  of the
Premises without Landlord's prior written consent, which consent may be withheld
in Landlord's sole and absolute discretion.

         14.5 Bonus Value. Tenant agrees that fifty percent (50%) of any amounts
paid by the  assignee  or  sublessee,  however  described,  in  excess of (i)the
monthly  Rent  payable by Tenant  hereunder  (or,  in the case of  sublease of a
portion of the Premises,  in excess of the Monthly Rent reasonably  allocable to
such  portion),  plus  (ii)Tenant's  direct  out-of-pocket  costs  which  Tenant
certifies to Landlord  have been paid to provide  occupancy-related  services to
such assignee or sublessee of a nature commonly provided by landlords of similar
space,  shall be the  property of  Landlord  and such  amounts  shall be payable
directly to Landlord by the assignee or  sublessee.  At  Landlord's  request,  a
written  agreement  shall be entered into by and among Tenant,  Landlord and the
proposed assignee or sublessee confirming the requirements of this Section14.5.

         14.6  Certain  Transfers.  The  sale  of  all or  substantially  all of
Tenant's assets (other than bulk sales in the ordinary course of business),  or,
if Tenant is a corporation, an unincorporated association, or a partnership, the
transfer,  assignment  or  hypothecation  of  any  stock  or  interest  in  such
corporation,  association  or  partnership  in the  aggregate in excess of fifty
percent  (50%)  (except  for  publicly  traded  shares of stock  constituting  a
transfer of fifty percent (50%) or more in the  aggregate,  so long as no change
in the  controlling  interests of Tenant  occurs as a result  thereof)  shall be
deemed an assignment within the meaning and provisions of this ArticleXIV.

         14.7 Landlord's Fee and Expenses. If Tenant requests Landlord's consent
to an assignment  or subletting by Tenant under this Lease,  Tenant shall pay to
Landlord  a  fee  of  Three  Hundred   Dollars  ($300)  and  all  of  Landlord's
out-of-pocket expenses including, but not limited to, attorneys' fees reasonably
incurred related to such assignment or subletting by Tenant,  whether or not the
assignment or subletting is approved.

         14.8 Transfer of the Premises by Landlord.  Upon any  conveyance of the
Premises and assignment by Landlord of this Lease,  Landlord shall and is hereby
entirely  released  from all  liability  under any and all of its  covenants and
obligations  contained in or derived from this Lease occurring after the date of
such  conveyance  and  assignment,  and  Tenant  agrees to attorn to any  entity
purchasing or otherwise acquiring the Premises.


                                   ARTICLE XV

                              DEFAULTS AND REMEDIES

         15.1 Tenant's Default. At the option of Landlord,  a default under this
Lease by Tenant shall exist if any of the following  events shall occur (each is
called an "Event of Default"):

                   (a) Tenant  fails to pay the Rent payable  hereunder,  as and
when due,  for a period of three (3) days after  Notice by  Landlord;  provided,
however, the Notice given hereunder shall be in lieu of, and not in addition to,
any notice required under Section1161,  et seq., of the California Code of Civil
Procedure;
                   (b)  Tenant  attempts  to make  or  suffers  to be  made  any
transfer, assignment or subletting, except as provided in ArticleXIV hereof;

                   (c) Any of  Tenant's  rights  under  this  Lease  are sold or
otherwise  transferred  by or under court order or legal process or otherwise or
if any of the actions described in Section15.2 are taken by or against Tenant or
any Guarantor;

                   (d) The  Premises  are used  for any  purpose  other  than as
permitted pursuant to Article V;

                   (e)  Tenant  vacates or  abandons  the  Premises  or fails to
continuously  and  uninterruptedly  conduct  its  business in the  Premises  and
thereafter fails to pay rent:

                   (f) Any  representation  or warranty given by Tenant under or
in connection with this Lease
proves to be materially false or misleading;

                   (g) Tenant  fails to timely  comply  with the  provisions  of
Article VI ("Hazardous Materials"), Article XIV ("Assignment and Subletting"),

                                      -21-
<PAGE>

Article XVI ("Subordination;  Estoppel Certificate;  Financials"),  Section 21.5
("Modifications for Mortgagees") or Section21.19 ("Authority"); or

                  (h) Tenant  fails to  observe,  keep,  perform or cure  within
thirty (30) days after  Notice by Landlord  any of the other  terms,  covenants,
agreements or conditions contained in this Lease or those set forth in any other
agreements  or rules or  regulations  which  Tenant is  obligated  to observe or
perform.  In the event such default  reasonably  could not be cured or corrected
within such thirty (30) day period,  but is  reasonably  susceptible  to cure or
correction,  then Tenant shall not be in default  hereunder if Tenant  commences
the  cure  or  correction  of such  default  within  such  default  within  such
thirty(30)  day period and diligently  prosecutes  the same to completion  after
commencing   such   cure   or   correction.   The   Notice   required   by   his
subparagraph15.1(h)  shall be in lieu of,  and not in  addition  to,  any notice
required under Section1161, et seq., of the California Code of Civil Procedure.

Notices given under this Section15.1 shall specify the alleged default and shall
demand that Tenant  perform the provisions of this Lease or pay the Rent that is
in arrears,  as the case may be, within the  applicable  period of time, or quit
the Premises.  No such Notice shall be deemed a forfeiture  or a termination  of
this Lease unless Landlord so elects in the Notice.

         15.2 Bankruptcy or Insolvency. In no event shall this Lease be assigned
or  assignable  by operation of law and in no event shall this Lease be an asset
of  Tenant  in  any  receivership,   bankruptcy,  insolvency  or  reorganization
proceeding. In the event:

                   (a) A court  makes or enters  any  decree or order  adjudging
Tenant to be insolvent,  or approving as properly  filed by or against  Tenant a
petition  seeking  reorganization  or other  arrangement  of  Tenant  under  any
provisions of the Bankruptcy Code or any applicable  state law, or directing the
winding  up or  liquidation  of  Tenant  and such  decree  or order  shall  have
continued for a period of thirty (30) days;

                   (b) Tenant makes or suffers any transfer which  constitutes a
fraudulent  or  otherwise   avoidable  transfer  under  any  provisions  of  the
Bankruptcy Code or any applicable state law;

                   (c) Tenant  generally  assigns  its assets for the benefit of
its creditors; or

                   (d)  The  material  part of the  property  of  Tenant  or any
property essential to Tenant's business or of Tenant's interest in this Lease is
sequestered,  attached or executed  upon, and Tenant fails to secure a return or
release of such property  within thirty (30) days  thereafter,  or prior to sale
pursuant to such sequestration, attachment or levy, whichever is earlier.

                   Then this Lease shall,  at Landlord's  election,  immediately
terminate and be of no further force or effect whatsoever, without the necessity
for any further action by Landlord,  except that Tenant shall not be relieved of
obligations which have accrued prior to the date of such termination.  Upon such
termination,  the  provisions  herein  relating  to the  expiration  or  earlier
termination of this Lease shall control and Tenant shall  immediately  surrender
the  Premises  in the  condition  required  by the  provisions  of  this  Lease.
Additionally,  Landlord shall be entitled to all relief,  including  recovery of
damages from Tenant,  which may from time to time be permitted,  or recoverable,
under the Bankruptcy Code or any other applicable state laws.

         15.3 Landlord's  Remedies.  Upon the occurrence of an Event of Default,
then, in addition to and without waiving any other rights and remedies available
to Landlord at law or in equity or  otherwise  provided in this Lease,  Landlord
may, at its option,  cumulatively or in the alternative,  exercise the following
remedies:

                  (a) Landlord may terminate Tenant's right to possession of the
Premises,  in which case this Lease shall terminate and Tenant shall immediately
surrender possession of the Premises to Landlord.  No act by Landlord other than
giving Notice to Tenant of Landlord's  election to terminate  Tenant's  right to
possession shall terminate this Lease. Acts of maintenance, efforts to relet the
Premises,  or the appointment of a receiver on Landlord's  initiative to protect
Landlord's  interest  under this Lease shall not  constitute  a  termination  of
Tenant's  right to possession.  Termination  shall  terminate  Tenant's right to
possession of the Premises, but shall not relieve Tenant of any obligation under
this Lease which has accrued  prior to the date of such  termination.  Upon such
termination,  Landlord shall have the right to re-enter the Premises, and remove
all persons and  property,  and Landlord  shall also be entitled to recover from
Tenant:

                        (i) The worth of the time of award of the unpaid Monthly
Rent and Additional Rent which had been earned at the time of termination;

                        (ii) The  worth at the  time of award of the  amount  by
which the unpaid Monthly Rent and  Additional  Rent which would have been earned
after termination until the time of award exceeds the amount of such rental loss
that Tenant proves could have been reasonably avoided;

                        (iii)  The  worth at the time of award of the  amount by
which the unpaid  Monthly Rent and  Additional  Rent for the balance of the Term
after the time of award  exceeds  the  amount of such  rental  loss that  Tenant
proves could be reasonably avoided;

                        (iv) Any other amount  necessary to compensate  Landlord
for all the  detriment  proximately  caused by  Tenant's  failure to perform its
obligations  under this Lease or which in the ordinary course of things would be
likely to result from Tenant's default  including,  but not limited to, the cost
of  recovering  possession of the Premises,  commissions  and other  expenses of
reletting,  

                                      -22-
<PAGE>


the cost of  rectifying  any  damage to the  Premises  occasioned  by the act or
omission of Tenant,  reasonable attorneys' fees, and any other reasonable costs;
and
                        (v)  At  Landlord's  election,   all  other  amounts  in
addition to or in lieu of the foregoing as may be permitted by law.

                  As used in subsections  (1) and (ii) above,  the "worth at the
time of award" shall be computed by discounting  the amount at the discount rate
of the Federal  Reserve  Bank of San  Francisco  at the time of award plus three
percent (3%).

                  (b)  Landlord  may elect not to  terminate  Tenant's  right to
possession  of the  Premises,  in which  event this Lease will  continue in full
force and  effect  as long as  Landlord  does not  terminate  Tenant's  right to
possession,  and Landlord may continue to enforce all of its rights and remedies
under this Lease,  including the right to collect all Rent as it becomes due. In
the event that  Landlord  elects to avail itself of the remedy  provided by this
subparagraph 15.3(b), Landlord shall not unreasonably withhold its consent to an
assignment or subletting of the Premises subject to the reasonable standards for
Landlord's  consent as are  contained in this Lease.  In addition,  in the event
Tenant has entered into a sublease which is valid under the terms of this Lease,
Landlord  may also,  at its  option,  cause  Tenant to  assign to  Landlord  the
interest of Tenant under said sublease  including,  but not limited to, Tenant's
right to  payment  of Rent as it becomes  due.  Landlord  may elect to enter the
Premises  and relet them,  or any part of them,  to third  parties for  Tenant's
account.  Tenant shall be liable  immediately to Landlord for all costs Landlord
incurs in  reletting  the  Premises  including,  but not  limited  to,  broker's
commissions,  expenses of cleaning and remodeling  the Premises  required by the
reletting, attorneys' fees and like costs. Reletting can be for a period shorter
or longer than the remaining  Term of this Lease and for the entire  Premises or
any  portion  thereof.  Tenant  shall  pay to  Landlord  the  Monthly  Rent  and
Additional  Rent due under  this  Lease on the dates the  Monthly  Rent and such
Additional  Rent are due,  less the Rent  Landlord  actually  collects  from any
reletting.  Except as provided in the preceding sentence, if Landlord relets the
Premises or any portion thereof,  such reletting shall not relieve Tenant of any
obligation  hereunder.  Notwithstanding the above, no act by Landlord allowed by
this  subparagraph15.3(b)  shall terminate this Lease unless  Landlord  notifies
Tenant in writing that Landlord elects to terminate this Lease.

         15.4 No Surrender. Tenant waives any right of redemption or relief from
forfeiture under  California Code of Civil Procedure,  Sections1174 and 1179, or
under any other present or future law in the event Tenant is evicted or Landlord
or  Landlord's  Agents  during  the Term  shall be  deemed  an  acceptance  of a
surrender of the Premises, and no agreement to accept a surrender shall be valid
unless in  writing  and  signed by  Landlord.  No  employee  of  Landlord  or of
Landlord's  Agent shall have any power to accept the keys to the Premises  prior
to the  termination of this Lease,  and the delivery of the keys to any employee
shall not operate as a termination of this Lease or a surrender of the Premises.

         15.5 Interest on Late  Payments.  Any Rent due under this Lease that is
not paid to Landlord within five (5) days of the date when due shall commence to
bear interest at the Applicable  Rate until fully paid.  Neither the accrual nor
the payment of interest shall cure any default by Tenant under this Lease.

         15.6  Attorneys'  and  Other  Fees.  All sums  reasonably  incurred  by
Landlord in connection with an Event of Default or holding over of possession by
Tenant after the  expiration or  termination  of this Lease  including,  but not
limited  to,  all  reasonably  costs,  expenses  and  reasonable   accountants',
appraisers',  attorneys' and other  professional fees, and any collection agency
or other collection  charges,  shall be due and payable by Tenant to Landlord on
demand,  and shall bear  interest at the  Applicable  Rate from the date of such
demand until paid by Tenant. In addition,  in the event that any action shall be
instituted  by either of the parties  hereto for the  enforcement  of any of its
rights in and under  this  Lease,  the party in whose  favor  judgment  shall be
rendered  shall be  entitled  to  recover  from the  other  party  all  expenses
reasonably  incurred by the prevailing  party in such action,  including  actual
costs and reasonable attorneys' fees.

         15.7 Landlord's Default.  Landlord shall not be deemed to be in default
in the  performance of any  obligation  required to be performed by it hereunder
unless and until it has failed to perform  such  obligation  within  thirty (30)
days after receipt of Notice by Tenant to Landlord (and the  Mortgagees who have
provided  Tenant with notice)  specifying the nature of such default;  provided,
however,  that if the  nature of  Landlord's  obligation  is such that more than
thirty (30) days are required for its  performance,  then Landlord  shall not be
deemed to be in default if it shall commence such performance within such thirty
(30) day period and thereafter diligently prosecutes the same to completion.

         15.8 Limitation of Landlord's Liability. The obligations of Landlord do
not constitute the personal  obligations of the individual limited partners if a
partnership  or  if  a  corporation  the,  trustees,   directors,   officers  or
shareholders of Landlord or its constituent  partners. If Landlord shall fail to
perform any covenant,  term, or condition of this Lease upon  Landlord's part to
be  performed,  Tenant  shall be required  to deliver to Landlord  Notice of the
same.  If,  as a  consequence  of such  default,  Tenant  shall  recover a money
judgment  against  Landlord,  such judgment  shall be satisfied  only out of the
proceeds of sale  received upon  execution of such  judgment and levied  thereon
against the right,  title and  interest of Landlord in the  Building  and out of
rent or other  income  from  such  property  receivable  by  Landlord  or out of
consideration  received by Landlord from the sale or other disposition of all or
any part of Landlord's right,  title or interest in the Building,  and no action
for any deficiency may be sought or obtained by Tenant.

                                      -23-
<PAGE>

         15.9  Mortgagee  Protection.  Upon any default on the part of Landlord,
Tenant will give notice by registered or certified mail to any Mortgagee who has
provided  Tenant  with  notice of its  interest  together  with an  address  for
receiving  notice,  and shall offer such  Mortgagee a reasonable  opportunity to
cure  the  default  (which  in no event  shall be less  than  sixty  (60)  days,
including  time to  obtain  possession  of the  Premises  by  power of sale or a
judicial foreclosure,  if such should prove necessary,  to effect a cure. Tenant
agrees  that each of the  Mortgagees  to whom this  Lease has been  assigned  by
Landlord is an express third-party beneficiary hereof. Tenant shall not make any
prepayment of Monthly Rent more than one (1) month in advance  without the prior
written  consent of such  Mortgagee.  Tenant  waives any right under  California
Civil Code, Section 1950.7, or any other present or future law to the collection
of any deposit from such  Mortgagee or any  purchaser at a  foreclosure  sale of
such  Mortgagee's  interest  unless such Mortgagee or such purchaser  shall have
actually  received  and not  refunded  the  deposit.  Tenant  agrees to make all
payments under this Lease to the Mortgagee with the most senior encumbrance upon
receiving a direction, in writing, to pay said amounts to such Mortgagee. Tenant
shall comply with such written direction to pay without  determining  whether an
event of default exists under such Mortgagee's loan to Landlord.

         15.10 Landlord's Right to Perform.  If Tenant shall at any time fail to
make any  payment or perform  any other act on its part to be made or  performed
under this  Lease,  Landlord  may subject to  Tenant's  right to cure  following
notice  under this Lease (but shall not be obligated  to), at Tenant's  expense,
and without waiving or releasing Tenant from any obligation of Tenant under this
Lease,  make such payment or perform  such other act to the extent  Landlord may
deem desirable,  and in connection  therewith,  pay expenses and employ counsel.
All sums paid by Landlord and all penalties,  interest and costs including,  but
not limited to,  collection  costs and attorneys'  fees  reasonably  incurred in
connection therewith, shall be due and payable by Tenant to Landlord, as an item
of Additional Rent, on demand by Landlord, together with interest thereon at the
Applicable Rate from the date of such demand until paid by Tenant.

         15.11  Limitation of Actions  Against  Landlord.  Any claim,  demand or
right of any kind by Tenant  which is based  upon or arises in  connection  with
this Lease shall be barred unless Tenant  commences an action thereon within one
(1) year of the date of  discovery  by  Tenant  of the act,  omission,  event or
default upon which the claim, demand or right arises, has occurred.

         15.12  Waiver of Jury Trial.  To the full extent  permitted by law, the
parties  hereby  waives the right to trial by jury in any action,  proceeding or
counterclaim  brought by either party on any matter whatsoever arising out of or
in any way connected with this Lease,  the  relationship of Landlord and Tenant,
Tenant's use or occupancy of the Premises and/or any claim of injury or damage.


                                   ARTICLE XVI

                 SUBORDINATION; ESTOPPEL CERTIFICATE; FINANCIALS

         16.1  Subordination,   Attornment  and  Non-Disturbance.   Without  the
necessity of any additional document being executed by Tenant for the purpose of
effecting a  subordination,  and at the election of Landlord or any Mortgagee or
any ground  lessor with  respect to the land of which the  Premises  are a part,
this Lease shall be subject and subordinate at all times to (1)all ground leases
or underlying  leases which may now exist or hereafter be executed in any amount
for which the Project,  the Building,  ground leases or  underlying  leases,  or
Landlord's  interest or estate in any of said items is  specified  as  security.
Landlord or any such  Mortgagee or ground  lessor  shall have the right,  at its
election,  to subordinate or cause to be subordinated  any such ground leases or
underlying leases or any such liens to this Lease. No subordination shall permit
material  interference with Tenant's rights hereunder,  and any ground lessor or
Mortgagee shall recognize Tenant and its permitted successors and assigns as the
tenant of the Premises and shall not disturb  Tenant's right to quiet possession
of the Premises  during the Term so long as no Event of Default has occurred and
is  continuing  under this Lease.  If  Landlord's  interest  in the  Premises is
acquired by any ground  lessor or  Mortgagee,  or in the event  proceedings  are
brought for the foreclosure of, or in the event of exercise of the power of sale
under, any Mortgage made by Landlord  covering the Premises or any part thereof,
or in the event a  conveyance  in lieu of  foreclosure  is made for any  reason,
Tenant shall,  notwithstanding  any  subordination  and upon the request of such
successor  in  interest  to  Landlord,  attorn to and  become  the Tenant of the
successor in interest to Landlord and  recognize  such  successor in interest as
the Landlord  under this Lease.  Although this  Section16.1  is  self-executing,
Tenant covenants and agrees to execute and deliver,  upon demand by Landlord and
in a commercially  reasonable formor requested by Landlord,  or any Mortgagee or
ground lessor, any additional documents evidencing the priority or subordination
of this Lease with respect to any such ground leases or underlying leases or the
lien of any such  Mortgage,  or  evidencing  the  attornment  of  Tenant  to any
successor in interest to Landlord as herein provided. Tenant's failure to timely
execute and deliver such  additional  documents  shall,  at  Landlord's  option,
constitute an event of Default hereunder.

         16.2  Estoppel  Certificate.  Tenant  shall,  within  twenty  (20) days
following  written  request by  Landlord,  execute and  deliver to Landlord  any
documents,  including estoppel  certificates,  in a form reasonably  required by
Landlord  (i)certifying  that this  Lease is  unmodified  and in full  force and
effect or, if modified,  attaching a copy of such  modification  and  certifying
that this  Lease,  as so  modified,  is in full force and effect and the date to
which the Rent and other charges are paid in advance, if any,  (ii)acknowledging
that there are not, to Tenant's  knowledge,  any uncured defaults on the part of
the Landlord or stating the nature of any uncured defaults,  (iii)evidencing the
status of this Lease as may be  required by a  Mortgagee  or a purchaser  of the
Premises,  (iv)certifying the current Monthly Rent among and the amount and form
of Security  Deposit on deposit with Landlord,  and  (v)certifying to such other
information  as  Landlord,   Landlord's   Agents,   Mortgagees  and  prospective
purchasers 

                                      -24-
<PAGE>

may reasonably request including,  but not limited to, any requested information
within the  requirements of this Lease including  Article 6 regarding  Hazardous
Materials.  Tenant's  failure to deliver an estoppel  certificate  within twenty
(20) days after delivery of Landlord's written request therefor shall constitute
an Event of Default hereunder.

         16.3 Financial Information.  Tenant shall deliver to Landlord, prior to
the execution of this Lease, and within ten (10) days following  written request
therefor by Landlord at any time  during the Term,  Tenant's  current  financial
statements, and Tenant's financial statements for the two (2) years prior to the
current fiscal financial  statement's year,  certified to be true,  accurate and
complete by the chief financial officer of Tenant, including a balance sheet and
profit and loss  statement  for the most recent  prior year  (collectively,  the
"Statements"),  which  Statement  shall  accurately and  completely  reflect the
financial condition of Tenant.  Landlord agrees that it will keep the Statements
confidential,  except that Landlord  shall have the right to deliver the same to
any proposed purchaser of the Premises,  the Project or any portion thereof, and
to the  Mortgagees  of  Landlord or such  purchaser.  Tenant  acknowledges  that
Landlord is relying on the  Statements in its  determination  to enter into this
Lease, and Tenant represents to Landlord,  which  representation shall be deemed
made on the date of this Lease, that no material adverse change in the financial
condition of Tenant, as reflected in the Statements, has occurred since the date
Tenant delivered the Statements to Landlord.  If any material change in Tenant's
financial condition, as reflected in the Statements, occurs prior to the date of
this Lease, or if Tenant fails to inform  Landlord of any such material  change,
Landlord  shall have the right,  in addition to any other rights and remedies of
Landlord,  to terminate this Lease by notice to Tenant given within fifteen (15)
thirty (30) days after Landlord learns of such material change.


                                  ARTICLE XVII

                               SIGNS AND GRAPHICS

         Landlord  shall  designate  the  location on the  Premises  for one (1)
exterior  identification sign for Tenant. Tenant shall have no right to maintain
identification signs in any other location in, or about the Premises (other than
a sign on the  entrance  door) and shall not  display or erect any other  signs,
displays or other  advertising  materials  that are visible from the exterior of
the  Building.  The  size,  design,  color  and other  physical  aspects  of the
permitted  sign  shall  be  subject  to  Landlord's  written  approval  prior to
installation, which approval shall not be unreasonably withheld. The cost of all
signs and graphics, including the installation, maintenance and removal thereof,
shall be at  Tenant's  sole cost and  expense.  Landlord  shall  ensure that the
existing  monument  sign is blank and is in good  condition  and repair prior to
Tenant's occupancy of the Premises. If Tenant fails to maintain its signs, or if
Tenant fails to remove its name placard from the monument sign, upon termination
of this Lease and repair any damage caused by such removal  (including,  but not
limited to, repainting the affected area, if required by Landlord), Landlord may
do so at Tenant's expense. All sums reasonably disbursed,  deposited or incurred
by Landlord in connection with such removal  including,  but not limited to, all
costs,  expenses and actual  attorneys' fees, shall be due and payable by Tenant
by  Landlord  on deemed by  Landlord,  together  with  interest  thereon  at the
Applicable Rate from the date of such demand until paid by Tenant.


                                  ARTICLE XVIII

                                 QUIET ENJOYMENT

         Landlord  for itself and its  successors  in interest,  covenants  that
Tenant, upon performing the terms, conditions and covenants of this Lease, shall
have  quiet and  peaceful  possession  of the  Premises  as  against  nay person
claiming the same by, through or under Landlord.

                                   ARTICLE XIX

                             SURRENDER; HOLDING OVER

                        19.1  Surrender of the Premises.  Upon the expiration or
earlier  termination  of this Lease,  Tenant  shall  surrender  the  Premises to
Landlord in its condition  existing as of the  completion of the Work defined in
the Workletter  attached hereto as Exhibit "C", normal wear and tear and acts of
God excepted,  in a clean and broom swept  condition  with all interior walls in
good repair,,  the HVAC  equipment,  plumbing,  electrical and other  mechanical
installations  in good operating  order,  all to the reasonable  satisfaction of
Landlord.  Tenant shall  remove from the  Premises  all of Tenant's  Alterations
which  Landlord  requires  Tenant  to remove  pursuant  to  Section  8.1 and all
Tenant's  Personal  Property,  and shall  repair  any  damage  and  perform  any
restoration  work  caused  by such  removal.  If  Tenant  fails to  remove  such
Alterations  and  Tenant's  Personal  Property  which Tenant is  authorized  and
obligated to remove pursuant to the above, and such failure  continues after the
termination  of this Lease,  Landlord any retain such property and all rights of
Tenant with respect to it shall cease,  or Landlord may place all or any portion
of such  property in public  storage for Tenant's  account.  Tenant shall pay to
Landlord, upon demand, the costs of removal of any such Alterations and Tenant's
Personal Property and storage and transportation  costs of same, and the cost of
repairing and restoring the Premises, together with attorneys' fees and interest
on said amounts at the Applicable Rate from the date of expenditure by Landlord.
If the Premises are not so surrendered at the termination of this Lease,  Tenant
hereby agrees to indemnify  Landlord and  Landlord's  Agents against all loss or
liability resulting from any delay by Tenant in so surrendering the Premises.

                                      -25-
<PAGE>

         19.2 Holding Over.  If Tenant  remains in possession of all or any part
of the Premises after the expiration of the Term with the prior written  consent
of Landlord,  such possession shall constitute a month-to-month tenancy only and
shall not  constitute a renewal or  extension  for any further  term.  If Tenant
remains in possession of all or any part of the Premises after the expiration of
the Term without the prior written consent of Landlord,  such  possession  shall
constitute a tenancy at sufferance. In either of such events, Monthly Rent shall
be increased to an amount equal to one hundred twenty-five percent (125%) of the
Monthly Rent payable  during the last month of the Term,  and any other sums due
hereunder  shall be payable in the  amounts and at the times  specified  in this
Lease.  Any such tenancy  shall be subject to every other term,  condition,  and
covenant contained in this Lease.


                                   ARTICLE XX

                       CONSTRUCTION OF TENANT IMPROVEMENTS

         The  obligations  of Landlord and Tenant,  if any,  with respect to the
Tenant Improvements,  are set forth in the Work Letter attached as ExhibitC.  It
is acknowledged and agreed that all Tenant Improvements under this Lease are and
shall be the property of Landlord  from and after their  installation,  Tenant's
Personal Property excepted.

                                   ARTICLE XXI

                    MISCELLANEOUS AND INTERPRETIVE PROVISIONS

         21.1  Broker.  Landlord  and Tenant each  warrant and  represent to the
other that neither has had any dealings  with any real estate  broker,  agent or
finder in connection with the  negotiation of this Lease or the  introduction of
the parties to this  transaction,  except for the Broker (whose commission shall
be paid by Landlord), and that it knows of no other real estate broker, agent or
finder who is or might be entitled to a  commission  or fee in  connection  with
this Lease. In the event of any additional  claims for brokers' or finders' fees
with respect to this Lease, Tenant shall indemnify,  hold harmless,  protect and
defend  Landlord  from and  against  such claims if they shall be based upon any
statement or  representation  or agreement  made by Tenant,  and Landlord  shall
indemnify, hold harmless, protect and defend Tenant from and against such claims
if they shall be based upon any statement,  representation  or agreement made by
Landlord.


         21.2 Examination of Lease.  Submission of this Lease for examination or
signature by Tenant does not create a  reservation  of or option to lease.  This
Lease shall become  effective and binding only upon full execution of this Lease
by both Landlord and Tenant.

         21.3 No Recording. Tenant shall not record this Lease or any memorandum
of this Lease  without  Landlord's  prior  written  consent,  but if Landlord so
requests,  Tenant agrees to execute,  have acknowledged and deliver a memorandum
of this Lease in recordable form which Landlord thereafter may file for record.

         21.4  Quitclaim.  Upon any  termination of this Lease Tenant shall,  at
Landlord's  request,  execute,  have  acknowledged  and  deliver to  Landlord an
instrument in writing  releasing and  quitclaiming to Landlord all right,  title
and  interest  of Tenant  in and to the  Premises  by  reason  of this  Lease or
otherwise.

         21.5  Modifications  for  Mortgagees.  If in connection  with obtaining
financing for the Premises or any portion thereof,  Landlord's  Mortgagees shall
request reasonable modifications to this Lease as a condition to such financing,
Tenant  shall not  unreasonably  withhold,  delay or defer its consent  thereto,
provided  such   modifications   do  not  adversely   affect  Tenant's   rights,
unreasonably  interfere  with  Tenant's  use or enjoyment  of the  Premises,  or
increase the monetary  obligations of Tenant  hereunder.  Tenant's failure to so
consent shall constitute an Event of Default under this Lease.

         21.6  Notice.  Any Notice  required  or desired to be given  under this
Lease shall be in writing and shall be  addressed to the address of the party to
be served.  The  addresses of Landlord and Tenant are as set forth in Items1 and
3,  respectively,  of the Basic Lease  Provisions,  except that  (a)prior to the
Commencement  Date,  the  address  for  Notices to Tenant  shall be as set forth
opposite   Tenant's   signature  on  this  Lease,  and  (b)from  and  after  the
Commencement Date,  notwithstanding  the addresses for Tenant set forth in Item3
of  the  Basic  Lease  Provisions,  all  Notices  regarding  the  operation  and
maintenance  of the Project shall be delivered to Tenant at the  Premises.  Each
such Notice shall be deemed effective and given (i)upon  receipt,  if personally
delivered  (which  shall  include  delivery  by  courier or  overnight  delivery
service),  (ii)upon being  telephonically  confirmed as transmitted,  if sent by
telegram,  telex or telecopy,  (iii)two (2) business  days after  deposit in the
United  States mail in orange  County or in the count in which the  Premises are
located,  certified and postage prepaid,  properly  addressed to the party to be
served,  or (iv)upon receipt if sent in any other way. Any party hereto may from
time to time,  by  Notice  to the other in  accordance  with  this  Section21.6,
designate a  different  address  than that set forth  above for the  purposes of
Notice.

         21.7 Captions. The captions and headings used in this Lease are for the
purpose of  convenience  only and shall not be  construed to limit or extend the
meaning of any part of this Lease.

         21.8  Executed  Copy.  Any fully  executed  copy of this Lease shall be
deemed an original for all purposes.

         21.9 Time.  Time is of the  essence for the  performance  of each term,
condition and covenant of this Lease.

                                      -26-
<PAGE>

         21.10  Severability.  If any one or more  of the  provisions  contained
herein shall for any reason be held to be invalid,  illegal or  unenforceable in
any respect, such invalidity,  illegality,  or unenforceability shall not affect
any other provision of this Lease,  but this Lease shall be construed as if such
invalid, illegal or unenforceable provision had not been contained herein.

         21.11  Survival.  All covenants and  indemnities set forth herein which
contemplate  the payment of sums, or the performance by Tenant after the Term or
following  an Event of  Default,  including  specifically,  not  limited to, the
covenants  and  indemnities  set  forth in  Section5.3,  ArticleVI,  ArticleVII,
Section8.1, Section9.2, Section11.1, Section11.9, ArticleXV, and ArticleXIX, and
all  representations  and warranties of Tenant,  shall survive the expiration or
sooner termination of this Lease.

         21.12  Choice of Law.  This Lease shall be  construed  and  enforced in
accordance  with the laws of the State of California.  The language in all parts
of this Lease shall in all cases be construed  as a whole  according to its fair
meaning and not strictly for or against either Landlord or Tenant.

         21.13  Gender;  Singular,  Plural.  When  the  context  of  this  Lease
requires, the neuter gender includes the masculine,  the feminine, a partnership
or corporation or joint venture, the singular includes the plural and the plural
includes the singular.

         21.14  Non-Agency.  It is not the  intention  of  Landlord or Tenant to
create hereby a relationship of master-servant or principal-agent,  and under no
circumstance  shall tenant herein be considered the agent of Landlord,  it being
the sole purpose and intent of the parties  hereto to create a  relationship  of
landlord and tenant.

         21.15  Successors.  The terms,  covenants,  conditions  and  agreements
contained  in this Lease  shall,  subject to the  provisions  as to  assignment,
subletting, and bankruptcy contained herein and any other provisions restricting
successors  or  assigns,  apply  to  and  bind  the  heirs,  successors,   legal
representatives and assigns of the parties hereto.

         21.16 Waiver;  Remedies  Cumulative.  The waiver by either party of any
term,  covenant,  agreement or condition herein contained shall not be deemed to
be a waiver of any  subsequent  breach of the same or any other term,  covenant,
agreement or condition herein contained,  nor shall any custom or practice which
may grow up between the parties in the administration of this Lease be construed
to waive or to lessen the right of Landlord to insist  upon the  performance  by
Tenant  in strict  accordance  with all of the  provisions  of this  Lease.  The
subsequent  acceptance of Rent hereunder by Landlord shall not be deemed to be a
waiver of any proceeding breach by Tenant of any provisions, covenant, agreement
or  condition  of this  Lease,  other  than the  failure  of  Tenant  to pay the
particular Rent payment so accepted,  regardless of Landlord's knowledge of such
preceding  breach at the time of  acceptance  of such Rent  payment.  Landlord's
acceptance of any check, letter of payment shall in no event be deemed an accord
and satisfaction, and Landlord shall accept the check, letter or payment without
prejudice to  Landlord's  right to recover the balance of the Rent or pursue any
other remedy available to it. The rights and remedies of either party under this
Lease  shall be  cumulative  and in  addition  to any and all other  rights  and
remedies which either party has or may have.

         21.17 Unavoidable Delay. Except for the monetary  obligations of Tenant
under this  Lease,  neither  party  shall be  chargeable  with,  liable  for, or
responsible to the other for anything or in any amount for any Unavoidable Delay
and any  Unavoidable  Delay  shall not be deemed a breach of or  default  in the
performance  of this  Lease,  it being  specifically  agreed that any time limit
provision  contained in this Lease (other than the  scheduled  expiration of the
Term) shall be extended for the same period of time lost by Unavoidable Delay.

         21.18 Entire Agreement.  This Lease is the entire agreement between the
parties, and supersedes any prior agreements,  representations,  negotiations or
correspondence  between  the  parties,  except as  expressed  herein.  Except as
otherwise  provided herein, no subsequent change or addition to this Lease shall
be binding unless in writing and signed by the parties hereto.

         21.19  Authority.  If Tenant is a corporation  or a  partnership,  each
individual executing this Lease on behalf of the corporation or partnership,  as
the case may be,  represents and warrants that he is duly  authorized to execute
and deliver this Lease on behalf of said entity in accordance with its corporate
bylaws,  statement of partnership or certificate of limited partnership,  as the
case may be, and that this Lease is binding upon said entity in accordance  with
its terms.  If Tenant is a corporation,  Tenant shall, if requested by Landlord,
within thirty (30) days after execution of this Lease and prior to entering into
possession of the Premises, deliver to Landlord a certified copy of a resolution
of the Board of Directors of the  corporation or certificate of the Secretary of
the  corporation,  authorizing,  ratifying or  confirming  the execution of this
Lease.  If Tenant is a  partnership,  Tenant  shall,  if  requested by Landlord,
within  thirty (30) days after the execution of this Lease and prior to entering
into  possession of the Premises,  deliver to Landlord a certified  copy of this
partnership agreement authorizing such execution.

         21.20 Guaranty. All exhibits,  amendments,  riders and addenda attached
to this Lease are hereby incorporated into and made a part of this Lease. In the
event of variation or  discrepancy,  the duplicate  original  hereof  (including
exhibits,  amendments,  riders and  addenda,  if any,  specified  above) held by
Landlord  shall  control.  All  references in this Lease to Articles,  Sections,
Exhibits,  Riders and clauses are made,  respectively,  to  Articles,  Sections,
Exhibits, Riders and clauses of this Lease, unless otherwise specified.

         21.22  Basic  Lease  Provisions.  The  Basic  Lease  Provisions  at the
beginning of this Lease are intended to provide general information only. In the
event of any  inconsistency  between the Basic Lease Provisions and the specific
provisions of this Lease, the specific provisions of this Lease shall prevail.

                                      -27-
<PAGE>

         21.23 No Merger.  The  voluntary  or other  surrender  of this Lease by
Tenant, or a mutual cancellation  thereof,  or a termination by Landlord,  shall
not work a merger,  and shall,  at the option of Landlord,  terminate all or any
existing  subtenancies  or  may,  at  the  option  of  Landlord,  operate  as an
assignment to Landlord of any or all such subtenancies.

         21.24 Joint and Several Obligations.  If more than one person or entity
is Tenant, the obligations  imposed on each such person or entity shall be joint
and several.

         21.25 No Light or Air Easement. Any diminution or shutting off of light
or air by any structure  which may be erected on lands  adjacent to the Building
shall in no way affect this Lease,  abate Rent or otherwise impose any liability
on Landlord.  This Lease does not confer any right with regard to the subsurface
below the ground level of the Building.

         21.26 Security Measures. Tenant hereby acknowledges that Landlord shall
have no  obligation  whatsoever  to  provide  guard  service  or other  security
measures  for the benefit of the  Premises or the  Project.  Tenant  assumes all
responsibility for the protection of Tenant, Tenant's Agents and the property of
Tenant  and of  Tenant's  Agents  from  acts of third  parties.  Nothing  herein
contained  shall prevent  Landlord,  at Landlord's  sole option,  from providing
security protection for the Project or any part thereof, in which event the cost
thereof  shall be included  within the  definition  of Project Costs and paid by
Tenant in the manner set forth in Section7.1.

         THIS LEASE is effective as of the date the last signatory  necessary to
execute this Lease shall have executed this Lease.

                                 "LANDLORD"

                                 Birtcher Property Services as Manager for
                                 Scripps Jack, Ltd., a California corporation

                                 By:    /s/ Michael S. Buzar
                                        ----------------------------------------
                                 Name:  Michael S. Buzar

                                 Title: Senior Vice President

                                 Date:  November 13, 1996


                                 By:     /s/ Linda L. Bettini
                                         ---------------------------------------
                                 Name:   Linda L. Bettini, CPM

                                 Title:  Vice President

                                 Date:   November 13, 1996


                                 "TENANT"

                                  Agouron Pharmaceuticals, Inc., a California
                                  corporation

                                  By:    /s/ Glenn Zinser
                                         ---------------------------------------
                                  Name:  Glenn Zinser

                                  Title: Vice President, Operations

                                  Date:       November 8, 1996


                                  By:    /s/ Gary Friedman
                                         ---------------------------------------
                                  Name:  Gary E. Friedman, Esq.

                                  Title: Vice President and General Counsel

                                  Date:  November 8, 1996


<PAGE>


                                   EXHIBIT "A"
                           DESCRIPTION OF THE PREMISES

                            (DIAGRAM LAYOUT OMITTED)



<PAGE>


                                   EXHIBIT "B"

                              PROPERTY DESCRIPTION



The  "Property"  is that real  property  development  known as  Scripps-Sorrento
Building, located at 4245 Sorrento Valley Blvd., San Diego, California.

The Property is further  described as that certain  improved  real  property,  a
diagram of which is attached  as part of this  exhibit,  and which is  described
more  particularly  as:  Parcel 1 of Parcel Map #12377 in the City of San Diego,
County of San  Diego,  State of  California,  filed in the  office of The County
Recorder of San Diego County on October 18, 1982.






<PAGE>


                                   EXHIBIT "C"

                                   WORK LETTER


THIS WORK LETTER AGREEMENT  ("Workletter") is executed  simultaneously with that
certain  Lease dated October 17, 1996 between  Scripps Jack,  Ltd., a California
limited partnership,  as Landlord, and Agouron Pharmaceuticals,  Inc., as Tenant
relating  to  demised  premises  ("Premises"),  which  Premises  are more  fully
identified in the Lease. Capitalized terms used herein, unless otherwise defined
in this Workletter,  shall have the respective  meanings assigned to them in the
Lease.

For and in  consideration  of the agreement to lease the Premises and the mutual
covenants contained herein and in the Lease, Landlord and Tenant hereby agree as
follows:

1. Delivery of Premises. Landlord delivered the Premises to Tenant pursuant to 
the Lease and Tenant accepted the Premises in its "as is" condition, except for 
latent structural defects and Landlord's Construction  Obligations as defined 
herein.

2. Work.  Tenant,  at its sole cost and  expense,  shall  perform or cause to be
performed  the work (the "Work") in the  Premises  provided for in the Plans (as
defined in Paragraph 3 hereof) submitted to and approved by Landlord,  provided,
however,  that Tenant's work shall not include Tenant's furniture,  furnishings,
equipment or other interior decor.  Tenant's Work shall be constructed in a good
and workmanlike  fashion,  in accordance with the  requirements set forth herein
and in  compliance  with  all  applicable  laws,  ordinances,  rules  and  other
governmental  requirements.  Tenant shall commence the  construction of the Work
promptly following completion of the preconstruction  activities provided for in
Paragraph  3 below  and shall  diligently  proceed  with all such  construction.
Tenant shall coordinate its work so as to avoid interference with any work being
performed by or on behalf of Landlord and other tenants in the Project.

3.       Preconstruction Activities.

         (a) As soon as reasonably possible, but in no event later than November
30, 1996, Tenant shall submit the following information and items to Landlord:

                        (i) a  detailed  construction  schedule  containing  the
major  components  of the Work and the time  required  for each,  including  the
scheduled commencement date of construction of the Work, milestone dates and the
estimated date of completion of construction;

                        (ii) an itemized statement of the estimated construction
cost, including permit, architectural and engineering fees;

                        (iii) the names and  addresses  of  Tenant's  contractor
(and the  contractors'  subcontractors)  to be  engaged  by Tenant  for the Work
(collectively "Tenant's Contractors"). Landlord has approved David Begent & Co.,
Inc. as the contractor engaged by Tenant for the Work.

                        (iv) certificates of insurance as hereinafter described.
Tenant shall not permit Tenant's Contractors to commence work until the required
insurance  has been obtained and  certified  copies of policies or  certificates
have been delivered to Landlord;

                        (v) the Plans for the Work, which Plans shall be subject
to Landlord's approval in accordance with Paragraph 3(b) below.


Tenant  will  update  such  information  and items by notice to  Landlord of any
changes.

         (b) As used herein,  the term "Plans"  shall mean the full and detailed
final  architectural and engineering plans and specifications  covering the Work
(including, without limitation, architectural, mechanical and electrical working
drawings for the Work).  The Plans shall be subject to the approval of all local
governmental  authorities  requiring  approval,  if any.  Landlord has given its
approval of preliminary  architectural  drawings dated October 10, 1996 (SL-001;
K-01a,  -01b, -01c, -0d; K-02, 02a, -02b, -02c,  -02d;  K-03a,  -03b, -03c, 03d;
k-04a) and the basis of design dated October 29,1996  (collectively  the "Design
Plan").  It is the  intention  of the  parties  that the Plans will  reflect the
design  set  forth in the  Design  Plan,  and that  completed  Plans  which  are
consistent  with the Design Plan shall be deemed  approved by the  Landlord.  If
changes are required to the Plans  submitted  by Tenant,  (for  example,  if 

<PAGE>

the Plans  differ from the Design  Plan)  Tenant  shall,  within  three (3) days
thereafter,  submit to Landlord for its approval the proposed  revised  Plans as
amended in  accordance  with the  changes so  required.  The Plans shall also be
revised, and the Work shall be changed, to incorporated any work required in the
Premises by and local governmental field inspector.  Landlord's  approval of the
Plans  shall in no way be deemed to be  acceptance  or  approval  of any element
therein  contained  which is in violation  of any  applicable  laws,  ordinance,
regulations or other  governmental  requirements or a representation or warranty
that the Plans are  adequate  for any  purpose.  Landlord  agrees  that  changes
mandated  solely by governmental  authorities  shall be acceptable and shall not
require any further  Landlord  approval so long as such changes are  implemented
without adversely  altering the Building's  structure and in a manner reasonably
acceptable to Landlord.

                   (c) No Work shall be undertaken or commenced by Tenant in the
Premises until:

                        (i) the Plans have been  submitted  to and  approved  by
Landlord, except that Tenant can begin demolition prior to final Plan approval;

                        (ii) all required insurance coverages have been obtained
by  Tenant.  (Failureof  Landlord  to receive  evidence  of such  coverage  upon
commencement  of the Work shall not waive  Tenant's  obligations  to obtain such
coverages.);

                        (iii) items  required to be submitted to Landlord  prior
to commencement of construction of the Work have been so submitted and have been
approved, where required;

                        (iv) Landlord has given written notice that the Work can
proceed. 

4. Delay.  In the event  Tenant  fails to deliver or deliver in  sufficient  and
accurate  detail the  information  required  under  Paragraph 3 on or before the
respective  dates specified in said Paragraph,  or in the event Tenant,  for any
reason, fails to complete the Work on or before the scheduled  Commencement Date
of the term of the Lease,  Tenant  shall be  responsible  for rent and all other
obligations  as set  forth in the Lease  from the  Commencement  Date  under the
Lease,  regardless of the degree of completion of the Work on such date,  and no
such  delay  in  completion  of the  Work  shall  relieve  Tenant  of any of its
obligations under said Lease.

6.  Change  Orders.  All  delays  caused  by  Tenant-initiated   change  orders,
including,  without  limitation,  any  stoppage of work during the change  order
review process, are solely the responsibility of Tenant and shall cause no delay
in the commencement of the Lease or the rental and other obligations therein set
forth.

7. Standards of Design and Construction and Conditions of Tenant's  Performance.
All work done in or upon the Premises by Tenant  shall be done  according to the
standards  set forth in this  Paragraph 7, except as the same may be modified in
the Plans approved by or on behalf of Landlord and Tenant.

         (a) Tenant's  Plans and all design and  construction  of the Work shall
comply with all applicable statutes,  ordinances,  regulations,  laws, codes and
industry  standards.  Approval by Landlord of the Plans shall not  constitute  a
waiver of this  requirement  or  assumption  by Landlord of  responsibility  for
compliance.  Where several sets of the foregoing laws,  codes and standards must
be met, the strictest  shall apply where not  prohibited by another law, code or
standard.

         (b) Tenant  shall  obtain,  at its own cost and  expense,  all required
building permits and, when construction has been completed, shall obtain, at its
own cost and expense,  an  occupancy  permit for the  Premises,  a copy of which
permit shall be delivered to Landlord.

         (c) Tenant's Contractors shall be licensed contractors, possessing good
labor  relations,  capable of  performing  quality  workmanship  and  working in
harmony  with  Landlord's   contractors  and   subcontractors   and  with  other
contractors and  subcontractors  in the Building.  All work shall be coordinated
with any other  construction  or other work in the  Building or Project in order
not to affect adversely construction work being performed by or for Landlord, it
being  understood  that,  in  the  event  of  any  conflict,  Landlord  and  its
contractors  and  subcontractors  shall have  priority  over Tenant and Tenant's
Contractors.

         (d) Landlord shall have the right,  but not the obligation,  to perform
on behalf of and for the account of Tenant,  subject to reimbursement by Tenant,
any work (i) which  Landlord deems to be necessary on an emergency  basis,  (ii)
which pertains to structural components, building systems or the general utility
systems for the Building,  or(iii)  which  pertains to the erection of temporary
safety barricades or signs during construction.

         (e)  Tenant  shall use only  new,  first-class  materials  in the Work,
except where  explicitly  shown  otherwise in the Plans approved by Landlord and
Tenant.  Tenant shall obtain warranties of at least one (1) year's duration from
the completion of the Work against  defects in workmanship  and materials on all
work performed and equipment installed in the Premises as part of the Work.

         (f) Tenant and Tenant's  Contractors  shall comply with all  reasonable
rules and  regulations  existing from time to time at the Project.  Construction
equipment and  materials  are to be kept within the  Premises,  and delivery and
loading of equipment and materials  shall be done at such  locations and at such
time as Landlord shall direct.

         (g)  Landlord  shall have the right to order  Tenant or any of Tenant's
Contractors  who  violate  the  requirements   imposed  on  Tenant  or  Tenant's
Contractors  in  performing  work to cease  work and remove  its  equipment  and
employees  from the Building or Project.  No such action by Landlord shall delay
the  commencement of the Lease or the rental and other  obligations  therein set
forth.

         (h) Tenant shall arrange and pay for removal of construction debris and
shall not place debris in the Building's or Project's waste containers.

         (i) Tenant shall permit access to the  Premises,  and the Work shall be
subject  to  inspection,  by  Landlord  and  Landlord's  architects,  engineers,
contractors  and other  

<PAGE>

representatives  at all  times  during  the  period  in which  the Work is being
constructed and installed and following completion of the Work.

         (j) Tenant shall proceed with its work expeditiously,  continuously and
efficiently,  and shall use its best  efforts  to  complete  the same as soon as
reasonably  possible.  Tenant shall notify  Landlord upon completion of the Work
and shall furnish  Landlord with such further  documentation as may be necessary
under Paragraphs 9 below.

         (k) Tenant shall  furnish to Landlord  "as-built"  drawings of the Work
within thirty (30) days after completion of the Work.

         (l) Tenant  shall  impose on and enforce all  applicable  terms of this
Workletter against Tenant's architect and Tenant's Contractors.

8.       Insurance and Indemnification.

         (a) In addition to any insurance which may be required under the Lease,
Tenant shall  secure,  pay for and  maintain or cause  Tenant's  Contractors  to
secure,  pay for  and  maintain  during  the  continuance  of  construction  and
fixturing  work within the  Building or  Premises,  insurance  in the  following
minimum coverages and limits of liability:

                  (i) workers'  compensation and employers'  liability insurance
with  limits of not less than  $500,000.00,  or such  higher  amounts  as may be
required  from  time to time by any  employee  benefit  acts or  other  statutes
applicable  where the work is to be  performed,  and in any event  sufficient to
protect Tenant's Contractors from liability under the aforementioned acts;

                  (ii) comprehensive or commercial  general liability  insurance
(including  contractors'  protective  liability)  in an  amount  not  less  than
$2,000,000.00  per occurrence,  whether  involving  bodily injury  liability (or
death resulting therefrom) or property damage liability or a combination thereof
with a minimum aggregate limit of not less than  $10,000,000.00.  Such insurance
shall  provide for explosion and  collapse,  completed  operations  coverage and
broad form blanket  contractual  liability  coverage  and shall insure  Tenant's
Contractors  against  any and all  claims  for bodily  injury,  including  death
resulting  therefrom,  and damage to the property of others and arising from its
operations under the contracts whether such operations are performed by Tenant's
Contractors or by anyone directly or indirectly employed by any of them;

                  (iii) comprehensive automobile liability insurance,  including
the ownership,  maintenance  and operation of any automotive  equipment,  owned,
hired or nonowned, in an amount not less than $500,000.00 for each person in one
accident and $1,000,000.00 for injuries  sustained by two or more persons in any
one  accident,  and  property  damage  liability  in an  amount  not  less  than
$1,000,000.00   for  each  accident.   Such  insurance   shall  insure  Tenant's
Contractors  against  any and all  claims  for bodily  injury,  including  death
resulting  therefrom,  and damage to the  property  of others  arising  from its
operations  under the  contracts,  whether  such  operations  are  performed  by
Tenant's  Contractors  or by anyone  directly or  indirectly  employed by any of
them;

                  (iv) "all risk"  builder's risk insurance upon the entire Work
to the full insurable value thereof.  This insurance shall include the interests
of Landlord and Tenant (and their respective  contractors and  subcontractors of
any tier to the extent of any insurable  interest therein) in the Work and shall
insure  against the perils of fire and extended  coverage and shall include "all
risk"  builder's risk insurance for physical loss or damage  including,  without
duplication of coverage, theft, vandalism and malicious mischief. If portions of
the Work are stored off the site of the  Building or in transit to said site are
not covered under said "all risk"  builder's risk  insurance,  then Tenant shall
effect and maintain similar property insurance on such portions of the Work. Any
loss insured under said "all risk"  builder's  risk  insurance is to be adjusted
with  Landlord  and  Tenant  and made  payable to  Landlord  as trustee  for the
insureds, as their interests may appear.

All policies  (except the  workers'  compensation  policy)  shall be endorsed to
include  as  additional  insured  parties  Landlord,  the  Mortgagees,  and  the
Additional Insureds named in Item 16 of the Basic Lease Provisions The waiver of
subrogation  provisions  contained  in the Lease  shall  apply to all  insurance
policies  (except  the  workers'  compensation  policy) to be obtained by Tenant
pursuant to this Paragraph. The insurance policy endorsements shall also provide
that all  additional  insured  parties  shall be given  thirty  (30) days' prior
written notice of any  cancellation  or nonrenewal of coverage  (except that ten
(10) days' notice shall be sufficient in the case of cancellation for nonpayment
of  premium)  and shall  provide  that the  insurance  coverage  afforded to the
additional  insured parties thereunder shall be primary to any insurance carried
independently   by  said  additional   insured  parties.   Additionally,   where
applicable,  each policy shall contain a  cross-liability  and  severability  of
interest clause.

         (b) Without limitation of the indemnification  provisions  contained in
the Lease,  to the fullest  extent  permitted by law Tenant agrees to indemnify,
protect,   defend  and  hold  harmless  Landlord,   Landlord's  contractors  and
Landlord's  architects and their partners,  directors,  officers,  employees and
agents, from and against all claims,  liabilities,  losses, damages and expenses
of whatever nature arising out of or in connection with the Work or the entry of
Tenant or Tenant's  Contractors into the Project, the Building and the Premises,
including,  without  limitation,  mechanics' liens or the cost of any repairs to
the  Premises,  Building  or Project  necessitated  by  activities  of Tenant or
Tenant's  Contractors  and bodily injury to persons or damage to the property of
Tenant, its employees, agents, invitees or licensees or others. It is understood
and agreed that the  foregoing  indemnity  shall be in addition to the insurance
requirements set forth above and shall not be in discharge of or in substitution
for same or any other indemnity or insurance provision of the Lease.

<PAGE>

9.       Landlord's Contribution; Excess Amounts.

         (a) Upon  completion of the work,  Tenant shall  furnish  Landlord with
final  waivers  of liens  and  contractors'  affidavits,  in such form as may be
required by Landlord,  from all parties performing labor or supplying  materials
or services in  connection  with the Work  showing that all of said parties have
been  compensated in full and waiving all liens in connection  with the Premises
and Building.  Tenant shall submit to Landlord a detailed  breakdown of Tenant's
total  construction  costs,  together  with  such  evidence  of  payment  as  is
reasonably satisfactory to Landlord.

         (b)  Upon  completion  of the  Work and  Tenant's  satisfaction  of all
requirements set forth herein,  Landlord shall make a dollar contribution in the
amount of Three Hundred Ninety Five Thousand  Dollars  ($395,000.00)("Landlord's
Contribution")  for  application  to the extent thereof to the cost of the Plans
and the Work.  If such  costs of the Plans and the Work and  exceeds  Landlord's
Contribution,  Tenant solely shall have  responsibility  for the payment of such
excess  cost.  If the cost of the  Plans,  and the Work is less than  Landlord's
Contribution,   Landlord  shall  be  entitled  to  retain  such  excess  amount.
Notwithstanding  anything  herein to the  contrary,  Landlord  may  deduct  from
Landlord's  Contribution  any  amounts  due to  Landlord  or its  architects  or
engineers under this Workletter.

         10. Miscellaneous.

         (a) Except as expressly set forth herein or in the Lease,  Landlord has
no agreement  with Tenant and has no  obligation  to do any work with respect to
the Premises.

         (b) If the Plans for the Work require the construction and installation
of more fire hose  cabinets  or  telephone/electrical  closets  than the  number
provided in the core of the Building in which the  Premises  are  located,  then
Tenant agrees to pay all costs and expenses  arising from the  construction  and
installation  of such  additional  fire hose  cabinets  or  telephone/electrical
closets.

         (c) Time is of the essence under this Workletter.

         (d) Any person  signing this  Workletter  on behalf of Landlord  and/or
Tenant warrants and represents he has authority to do so.

         (e) If  Tenant  fails  to make  any  payment  relating  to the  Work as
required hereunder,  Landlord,  at its option, may complete the work pursuant to
the approved  Plans and continue to hold Tenant liable for the costs thereof and
all other costs due to  Landlord.  Tenant's  failure to pay any amounts  owed by
Tenant  hereunder  when due or  Tenant's  failure  to  perform  its  obligations
hereunder  shall also  constitute a default under the Lease,  and Landlord shall
have all the  rights  and  remedies  granted  to  Landlord  under  the Lease for
nonpayment  of any amounts owed  thereunder  or failure by Tenant to perform its
obligations thereunder.

         (f) Notices under this Workletter  shall be given in the same manner as
under the Lease.

         (g) The liability of Landlord  hereunder or under any amendment  hereto
or any  instrument  or document  executed  in  connection  herewith  (including,
without  limitation,  the  Lease)  shall be limited  to and  enforceable  solely
against Landlord's interest in the Building.

         (h) The headings set forth herein are for convenience only.

         (i) This  Workletter  sets  forth the  entire  agreement  of Tenant and
Landlord  regarding the Work.  This Workletter may only be amended if in writing
and duly executed by both Landlord and Tenant.

<PAGE>


  IN WITNESS WHEREOF,  this Workletter is executed as of the date and year first
written above.


                                 "LANDLORD"

                                 Birtcher Property Services as Manager for
                                 Scripps Jack, Ltd., a California corporation

                                 By:    /s/ Michael S. Buzar
                                        ----------------------------------------
                                 Name:  Michael S. Buzar

                                 Title: Senior Vice President

                                 Date:  November 13, 1996


                                 By:     /s/ Linda L. Bettini
                                         ---------------------------------------
                                 Name:   Linda L. Bettini, CPM

                                 Title:  Vice President

                                 Date:   November 13, 1996


                                 "TENANT"

                                  Agouron Pharmaceuticals, Inc., a California
                                  corporation

                                  By:    /s/ Glenn Zinser
                                         ---------------------------------------
                                  Name:  Glenn Zinser

                                  Title: Vice President, Operations

                                  Date:       November 8, 1996


                                  By:    /s/ Gary Friedman
                                         ---------------------------------------
                                  Name:  Gary E. Friedman, Esq.

                                  Title: Vice President and General Counsel

                                  Date:  November 8, 1996



<PAGE>


                                   EXHIBIT "D"
                          COMMENCEMENT DATE MEMORANDUM



TO:                                                           DATED:___________


     "Tenant"

Re:  Office Lease dated ________________________, 19___, by and between _______
_______________________________________, as Landlord, and _____________________,
as Tenant (the "Lease").

     Please acknowledge that the Commencement Date of the Lease is _________,
19___ and that the Expiration Date of the Lease is _______________, 19__.
  
Very truly yours,



By:  ________________________

Its: ________________________

              "Landlord"


     Tenant  hereby  confirms  the  information  set forth  above,  and  further
acknowledges that Landlord has fulfilled its obligations,  if any, regarding the
construction   of   Tenant's   initial   leasehold    improvements   under   the
above-referenced Lease.


By:  ________________________

Its: ________________________


Dated:______________________, 19__

             "Tenant"



<PAGE>


                                   EXHIBIT "E"
                           ADJUSTMENT TO MONTHLY RENT



<TABLE>
<CAPTION>

                                                               Monthly Rent
                                                            per Square Foot
                                                                Of Gross
                  Period                                      Building Area
                  ------                                    -----------------
<S>                                                              <C>

May 15,1997 through and including December 31, 1997               $1.45

January 1, 1998 through and including December 31, 1998           $1.49

January 1, 1999 through and including December 31, 1999           $1.54

January 1, 2000 through and including December 31, 2000           $1.58

January 1, 2001 through and including December 31, 2001           $1.63


</TABLE>
<PAGE>


                                    EXHIBIT F
                              RULES AND REGULATIONS


                  This  Exhibit sets forth the rules and  regulations  governing
Tenant's use of the Premises leased to Tenant  pursuant to the terms,  covenants
and  conditions  of the Lease to which this Exhibit is attached and therein made
part thereof. Unless otherwise defined, capitalized terms used herein shall have
the same  meaning as set forth in the  Lease.  In the event of any  conflict  or
inconsistency between this Exhibit and the Lease, the Lease shall control.

                  1. Tenant  shall not place  anything  or allow  anything to be
placed near the glass of any window,  door,  partition  or wall which may appear
unsightly from outside the Premises.

                  2. The walls, walkways,  sidewalks,  entrance passages, courts
and  vestibules  shall not be  obstructed  or used for any  purpose  other  than
ingress and egress of pedestrian travel to and from the Premises,  and shall not
be  used  for  loitering  or  gathering,  or to  display,  store  or  place  any
merchandise,  equipment  or devices,  or for any other  purpose.  The  walkways,
entrance  passageways,  courts,  vestibules  and roof are not for the use of the
general public and Landlord shall retain the right to control and prevent access
thereto by all  persons  whose  presence in the  judgment  of Landlord  shall be
prejudicial to the safety,  character,  reputation and interests of the Building
and its tenants,  provided that nothing therein  contained shall be construed to
prevent such access to persons with whom Tenant  normally  deals in the ordinary
course  of  Tenant's  business  unless  such  persons  are  engaged  in  illegal
activities.

                  3. No  awning or other  projection  shall be  attached  to the
outside  walls of the  Building.  No security  bars or gates shall be  installed
without  the prior  written  consent of  Landlord,  which  consent  shall not be
unreasonably withheld. Neither the interior nor exterior of any windows shall be
coated or otherwise sunscreened without the express written consent of Landlord,
which consent shall not be unreasonably withheld.

                  4.  Tenant  shall  not in any  way  deface  any  part  of the
Premises or the Building.  The expense of repairing any damage  resulting from a
violation of this rule shall be borne by the Tenant.

                  5. The toilet rooms,  urinals,  wash bowls and other  plumbing
apparatus  shall not be used for any purpose other than that for which they were
constructed  and no foreign  substance  or any kind  whatsoever  shall be thrown
therein.  The expense for any breakage,  stoppage or damage  resulting  from the
violation of this rule shall be borne by the Tenant.

                  6. The Premises shall not be used for  manufacturing,  offices
or the  storage  of  merchandise  except  as the  same me be  incidental  to the
permitted use of the Premises.  No exterior storage shall be allowed at any time
without prior written  approval of Landlord.  The Premises shall not be used for
cooking or washing clothes without the prior written consent of Landlord, or for
lodging or sleeping or for any illegal purposes.

                  7. Tenant shall not make,  or permit to be made,  any unseemly
or disturbing  noises or disturb or interfere with the  neighboring  building or
premises or those having  business with them,  whether by the use of any musical
instrument, radio, phonograph, machinery, or otherwise.

                  8.  Tenant  shall  not use the  name  of the  Building  or the
Project in  connection  with or in  promoting  or  advertising  the  business of
Tenant,  except as  Tenant's  address,  without  the prior  written  consent  of
Landlord.  Landlord shall have the right to prohibit any advertisement by Tenant
which, in Landlord's  reasonable opinion,  tends to impair the reputation of the
Project or its  desirability  for its intended use, and upon written notice from
Landlord Tenant shall refrain from or discontinue such advertising.

                  9.  Canvassing,  soliciting,  peddling,  parading,  picketing,
demonstrating or otherwise engaging in any conduct that unreasonably impairs the
value or use of the  Premises  or the Project are  prohibited  and Tenant  shall
cooperate to prevent the same.

                  10. All equipment of any electrical or mechanical nature shall
be placed by Tenant  on the  Premises,  in  settings  approved  by  Landlord  in
writing,  in such a way as to best  minimize,  absorb and prevent any vibration,
noise or  annoyance.  No  Equipment of any type shall be [placed on the Premises
which in  Landlord's  opinion  exceeds the load limits of the floor or otherwise
threatens the soundness of the structure or improvements of the Building.

                  11. No aerial antenna shall be erected on the roof or exterior
of the  Premises,  or on the rounds,  without in each instance the prior written
consent of Landlord.  Any aerial  antenna so installed by or on behalf of Tenant
without such written consent shall be subject to removal by Landlord at any time
without prior notice at the expense of Tenant,  and Tenant shall upon Landlord's
demand pay a removal fee to Landlord of not less than $200.00.

                  12.  The entire  Premises,  including  vestibules,  entrances,
doors, fixtures,  windows and plate glass, shall at all times be maintained in a
safe, neat and clean condition by Tenant. All trash, refuse and wastes materials
shall be  regularly  removed  from the  Premises  by  Tenant  and  placed in the
containers at the locations  designated by Landlord for refuse  collection.  All
cardboard  boxes  must be  "broken  down"  prior to being  placed  in the  trash
containers.  All Styrofoam chips must be bagged or otherwise  contained prior to
placement in the trash containers,  so as not to constitute a nuisance.  Pallets
may not be disposed of in the trash  containers  or  enclosures.  The burning of
trash, refuse or waste materials is prohibited.

                  13. Tenant shall use at Tenant's cost such pest  extermination
contractor  as Landlord may direct and at such  intervals as Landlord and Tenant
determine necessary.

                  14.  Tenant shall not change  locks or install  other locks on
doors of the  Premises,  without the prior written  consent of Landlord.  In the
event of loss of any keys furnished by Landlord for Tenant,  Tenant shall pay to
Landlord the cost thereof.

<PAGE>

                  15. No person shall enter or remain  within the Project  while
intoxicated  or under the influence of liquor or drugs.  Landlord shall have the
right to exclude or expel from the  Project  any  person  who,  in the  absolute
discretion of Landlord, is under the influence of liquor or drugs.

                  Tenant  agrees to comply with all such Rules and  Regulations.
Should  Tenant not abide by these Rules and  Regulations,  Landlord  may serve a
three (3) day notice to correct the  deficiencies.  If Tenant has not  corrected
the  deficiencies by the end of the notice period,  Tenant will be in default of
the Lease,  and  Landlord  and/or  its  designee  shall have the right,  without
further notice, to cure the violation at Tenant's expense.

                  Neither Landlord nor Landlord's  Agents or any other person or
entity shall be  responsible  to Tenant or to any other person for the ignorance
or violation of these Rules and Regulations by any other tenant or other person.
Tenant  shall be deemed to have read  these  Rules and  Regulations  and to have
agreed to abide by them as a condition precedent,  waivable only by Landlord, to
Tenant's occupancy of the Premises.



<PAGE>


                               RIDER NO.1 TO LEASE
                             DATED October 25, 1996
                                 BY AND BETWEEN
              Scripps Jack, Ltd., a California limited partnership,
             AS LANDLORD Agouron Pharmaceuticals, Inc., a California
                             corporation, AS TENANT

This Rider,  dated as of October 17, 1996, is attached to and made a part of the
above-described lease (the "Lease") between the above-named Landlord and Tenant.
Except as otherwise set forth in this Rider,  all terms used in this Rider shall
have the same meaning as when used in the foregoing portion of the Lease. To the
extent of any inconsistencies  between the foregoing provisions of the Lease and
the provisions of this Rider, the former are hereby amended.

OPTION TO EXTEND

         (a) Option. Tenant shall have the right to extend the Term of the Lease
for a period of sixty (60) months (the "Extension Period"), provided that Tenant
(i) is not in actual default under any provision of the Lease, (ii) is occupying
substantially  all of the Premises,  and (iii) has not assigned or subleased any
portion of the  Premises,  unless  otherwise  approved by Landlord in other such
assignment or sublease agreements.

         (b) Exercise of Option.  Tenant shall  exercise its right to extend the
Lease Term only by delivering  written notice to Landlord or Tenant's  desire to
so extend the Lease  Term no greater  than 270 days nor less than 180 days prior
to the commencement of each Extension Period (the "Extension Notice").

         (c) New Lease Or Extension  Amendment.  Upon  receipt of the  Extension
Notice,  Landlord shall prepare and deliver to Tenant an amendment to this Lease
(the  "Extension  Amendment")  or, if Landlord is then utilizing a form of lease
different  from this Lease,  Landlord  shall  deliver to Tenant a new lease (the
"New Lease").  The Extension  Amendment or New Lease shall provide for a Monthly
Rental equal to the fair market  rental for the Premises  determined by Landlord
according  to the rental then being  charges  for  comparable  space  within the
Sorrento Mesa area.  Fair market  rental as used above shall  include  increases
from the initial option rental which are typically included in leases negotiated
at that time.

         (d) Objection to Landlord's  Determination  of Fair Market  Rental.  If
Tenant  objects to  Landlord's  determination  of the fair market rental for the
Premises,  Landlord shall appoint a qualified  Commercial Real Estate profession
with at least  ten (10)  years of  experience  to  appraise  the  Premises  (the
"Landlord's  Appraisal")  for the purpose of determining the fair market rental.
The  Landlord's  Appraisal  shall be the fair  market  rental for the purpose of
determining  the Monthly  Rental during the Extension  Period.  Tenant shall (i)
within  five (5) days  after the  receipt of  written  notice of the  Landlord's
Appraisal  employ and pay an MAI  appraiser to determine  the fair market rental
for the Premises (the  "Tenant's  Appraisal"),  and (ii) within twenty (20) days
thereafter,  submit to  Landlord,  Tenant's  Appraisal  together  with a written
summary of the methods used and data  collected to make such  determination.  If
Landlord's  Appraisal and Tenant's Appraisal differ by (i) less than ten percent
(10%),  the greater of the two shall be the fair market  rental for the Premises
or (ii) more than ten percent (10%), Landlord and Tenant shall promptly instruct
its  appraiser to jointly  appoint a third MAI  appraiser to determine  the fair
market  rental for the  Premises  (the "Third  Appraisal").  Landlord and Tenant
shall  each pay  one-half  (1/2) of the  expenses  of the Third  Appraisal.  The
appraisal  among the three (3) that is  furthest  from the  median of all of the
appraisals  shall be  disregarded  and the average of the other two shall be the
fair market rental for the Premises and binding upon Landlord and Tenant.  Until
appraisal  procedures  are  final,  Landlord  and  Tenant  shall  abide  by  the
provisions of the Extension Amendment or New Lease.  Notwithstanding anything to
the contrary  herein,  by giving written notice to Landlord within five (5) days
of  determination  of the fair  market  rental by the  appraiser(s),  Tenant may
withdraw  the exercise of its option and pay the  Landlord's  share of appraisal
fees, in which case the Lease Term shall terminate upon the Expiration Date.

         (e) Time is of the Essence.  Time shall be of the essence regarding all
the  periods set forth above for the  exercise of the option,  execution  of the
Extension  Amendment or New Lease and the objection to the  determination of the
fair market  rental for the Premises.  The failure of Tenant to timely  exercise
the option as provided in  paragraphs  (b) and (c) above shall cause this option
to  automatically  cease and  terminate,  and, in such  event,  this Lease shall
terminate  without  extension.  If Tenant or Landlord fail to timely comply with
the provisions of paragraph (d), the Non-Complying Party shall be deemed to have
accepted the fair market rental as determined by the Complying Party.

         (f) It is understood  and agreed that this option to extend is personal
to  Agouron  Pharmaceuticals,   Inc.,  a  California  corporation,  and  is  not
transferable;  in the event of any assignment or subleasing of any or all of the
Premises, this option to extend shall be null and void.

<PAGE>

                             SIGNTURE PAGE FOLLOWS

                                 "LANDLORD"

                                 Birtcher Property Services as Manager for
                                 Scripps Jack, Ltd., a California corporation

                                 By:    /s/ Michael S. Buzar
                                        ----------------------------------------
                                 Name:  Michael S. Buzar

                                 Title: Senior Vice President

                                 Date:  November 13, 1996


                                 By:     /s/ Linda L. Bettini
                                         ---------------------------------------
                                 Name:   Linda L. Bettini, CPM

                                 Title:  Vice President

                                 Date:   November 13, 1996


                                 "TENANT"

                                  Agouron Pharmaceuticals, Inc., a California
                                  corporation

                                  By:    /s/ Glenn Zinser
                                         ---------------------------------------
                                  Name:  Glenn Zinser

                                  Title: Vice President, Operations

                                  Date:       November 8, 1996


                                  By:    /s/ Gary Friedman
                                         ---------------------------------------
                                  Name:  Gary E. Friedman, Esq.

                                  Title: Vice President and General Counsel

                                  Date:  November 8, 1996



                                                                 EXHIBIT  10.34 

         PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED (DESIGNATED BY AN
   ASTERIX (*) AND WHITE SPACE) AND FILED SEPARATELY WITH THE SECURITIES AND
   EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT DATED
                       JANUARY 31, 1996; FILE NO. 0-15609


                               THIRD AMENDMENT TO
                        DEVELOPMENT AND LICENSE AGREEMENT

Effective as of December 1, 1994,  Agouron  Pharmaceuticals,  Inc., a California
corporation  ("Agouron") and Japan Tobacco Inc., a Japanese  corporation ("JT"),
for good and valuable consideration, agree as follows:

(Terms containing an initial capitalized letter,  except as explicitly otherwise
indicated,  shall  have the  meanings  stated  in the  Development  and  License
Agreement, as defined below).

                                   BACKGROUND

Agouron and JT entered into a Development  and License  Agreement dated December
1, 1994 and the First and  Second  Amendments  to the  Development  and  License
Agreement.  The Development and License  Agreement,  as amended,  is hereinafter
referred to as the "D&L Agreement."

The parties  wish to amend and  restate  certain of the  attachments  to the D&L
Agreement.

                                    AMENDMENT

1.       Agouron  and JT  hereby  agree to amend  and  restate  the  below-noted
         Attachments  to the D&L  Agreement  to read  in full as  stated  in the
         correspondingly-numbered Attachments to this Third Amendment:

                Attachment 2        Trademark License Agreement
                Attachment 3        Product Manufacturing Specifications
                Attachment 4        Royalty Methodology and Accounting Terms/
                                    Definitions
                Attachment 6        Premarketing Expenses and Reimbursement 
                                    Procedures

          2.      Except as modified by the terms  contained  herein,  the 
          provisions of the D&L Agreement shall remain in full force and effect.

AGOURON PHARMACEUTICALS, INC.             JAPAN TOBACCO INC.

By:      /s/ Gary E. Friedman             By:      /s/ Masakazu Kakei
         --------------------------                ----------------------------
Name:    Gary E. Friedman                 Name:    Masakazu Kakei
         --------------------------                ----------------------------
Title:   Corporate VP & General           Title:   Executive Director 
         Counsel                                   Pharmaceuticals
         --------------------------                ----------------------------
Date:    July 28, 1997                    Date:    July 9, 1997
         --------------------------                ----------------------------


<PAGE>

                                  ATTACHMENT 2
                           TRADEMARK LICENSE AGREEMENT


This  Trademark  License,  effective as of December 1, 1994, is between  Agouron
Pharmaceuticals,  Inc., a California corporation ("Agouron"),  and Japan Tobacco
Inc., a Japanese  corporation ("JT").  Agouron and JT are sometimes  hereinafter
referred to as a party (collectively "parties") to this Trademark License.

(Terms containing an initial capitalized letter,  except as explicitly otherwise
indicated,  shall  have the  meanings  stated in the D&L  Agreement,  as defined
below).

                                   BACKGROUND

Agouron and JT entered into a Development  and License  Agreement dated December
1, 1994,  and the First and Second  Amendments  to the  Development  and License
Agreement.  The  Development  and  License  Agreement,  as now  or  subsequently
amended, is hereinafter referred to as the "D&L Agreement."

The parties  have  conducted  collaborative  development  and  commercialization
activities for the HIV protease  inhibitor  nelfinavir  mesylate pursuant to the
terms of the D&L Agreement.

The D&L Agreement provides that a form trademark license shall be agreed upon by
the parties and attached to the D&L Agreement as Attachment 2. The D&L Agreement
also contains the following provisions  concerning the ownership and utilization
of Trademarks:

         Section 1.34 "Trademark(s)" means any trademark selected and owned by a
         party and registered by such party, its Affiliate(s) and sublicensee(s)
         in the Territory for use in connection with the marketing of Products.

         Section 2.01      License Grants.

                            (k)     *












                                      A2-1
<PAGE>

                   Section 3.03     Trademarks.  *




















The  provisions  of Section  2.01(k) of the D&L  Agreement  were  amended by the
Second Amendment to the D&L Agreement to provide that each party *


                   as such terms are defined in the Letter of Intent  ("LOI")  
dated  January 17,  1997  between  Roche and Agouron and JT.

One or both of the parties is the owner(s) of the Viracept Trademark, in certain
countries of the Territory.

The parties  intend to use the  Viracept  Trademark,  including  its  associated
non-English translations  (hereinafter collectively referred to as the "Viracept
Trademark"), *
                                                in  their  respective  Exclusive
Territories.

                                      A2-2
<PAGE>

NOW THEREFORE, in accordance with the provisions of the D&L Agreement,  for good
and valuable consideration, the parties agree as follows:

                                TRADEMARK LICENSE

          1.      Under the provisions of the D&L Agreement, as more 
specifically set forth above, each party *



2.       The parties' rights in Trademark(s) are *


3.       Products  marketed using the Viracept  Trademark shall be manufactured
         strictly  in  accordance   with  applicable   governmental   statutes,
         regulations or directives.

4.       The  licensed  user of the  Viracept  Trademark  shall  comply with all
         applicable governmental statutes, regulations or directives.

5.       The licensed user of the Viracept  Trademark shall not use the Viracept
         Trademark  in a manner  which is  deceptive,  or which  would bring the
         Viracept  Trademark,  the Product or the other party,  into  disrepute.
         Each party shall use the Viracept  Trademark,  including its associated
         non-English translations, *


6.       Pursuant to the terms of the D&L Agreement, *


         Provided a party fulfills its obligations and responsibilities  related
         to  Trademark(s)  and subject to the terms of the D&L  Agreement,  such
         party shall *




7.       Administration  of this Trademark  license shall be undertaken,  in 
         accordance with the procedures  established by Section 4.01 of the D&L 
         Agreement, *


8.       Each party shall,  upon  learning  thereof,  promptly  notify the other
         party in writing of any  infringement  by a third party of the parties'
         rights in the  Viracept  Trademark,  or of any claim or suit by a third
         party that the use of the  Viracept  Trademark  infringes  or otherwise
         violates the rights of a third party. The parties shall *




                                      A2-3
<PAGE>






9.       Only  the  licenses  granted  pursuant  to the  express  terms  of this
         Trademark License and the D&L Agreement shall be of any legal force and
         effect. No license rights shall be created by implication or estoppel.

10.      This Trademark License shall terminate *


11.      Any  failure  by either  party to enforce  any right  which it may have
         hereunder in any instance  shall not be deemed to waive any right which
         it or the other party may have in any other  instance  with  respect to
         any provisions of this Trademark License, including the provision which
         such party has failed to enforce.

12.      In the event that any provision of this Trademark License is judicially
         determined  to be  unenforceable,  in whole or in part,  the  remaining
         provisions or portions thereof of this Trademark License shall be valid
         and  binding to the fullest  extent  possible,  and the  parties  shall
         endeavor to negotiate additional terms, as feasible, in a timely manner
         so as to fully  effectuate the original  intent of the parties,  to the
         extent possible.  Ambiguities,  if any, in this Trademark License shall
         not be construed against any party,  irrespective of which party may be
         deemed to have authored the ambiguous provision.

13.      This  Trademark  License  and the D&L  Agreement  constitute  the  full
         agreement  of the parties  with  respect to the subject  matter of this
         Trademark License,  and incorporate any prior discussions  between them
         with respect to such subject matter.  This Trademark  License shall not
         be amended, supplemented or otherwise modified, except by an instrument
         in writing signed by a duly authorized officer of each party.

14.      If there is a conflict between the terms of this Trademark  License and
         the D&L Agreement, the terms of the D&L Agreement shall control.

15.      This  Trademark  License  shall be  construed,  and the  rights  of the
         parties shall be determined, in accordance with *


16.      Any notice  required  or  permitted  to be given  under this  Trademark
         License shall be in writing and shall be given in person,  delivered by
         recognized  overnight  delivery  service,  sent by mail  (certified  or
         registered, or air mail for addresses outside of the continental U.S.),
         or by telefax  (or other  similar  means of  electronic  communication)
         whose receipt is confirmed by confirming telefax, and addressed, in the
         case of Agouron,  to the President  and, in the case of JT, to the Vice
         President, Pharmaceutical Division at the respective 

                                      A2-4
<PAGE>

         addresses  shown at the  beginning  of the D&L  Agreement or such other
         person  and/or  address  as may have been  furnished  in writing to the
         notifying  party in accordance  with the provisions of this  paragraph.
         Except  as  otherwise  provided  herein,  any  notice  shall be  deemed
         delivered upon the earlier of (i) actual receipt, (ii) two (2) business
         days after delivery to such overnight  express service,  (iii) five (5)
         business days after deposit in the mail, or (iv) the date of receipt of
         the confirming telefax.

17.      This  Trademark  License  shall  be  binding  upon  all  successors  in
         interest,  assigns,  trustees  and other legal  representatives  of the
         parties.


IN WITNESS WHEREOF,  the parties hereto have executed this Trademark License, in
duplicate  originals,  by their respective officers thereunto duly authorized as
of the day and year hereinabove written.

AGOURON PHARMACEUTICALS, INC.           JAPAN TOBACCO INC.



By:      /s/ Gary E. Friedman           By:      /s/ Masakazu Kakei

Name:    Gary E. Friedman, Esq.         Name:    Masakazu Kakei

Title:   Vice President and             Title:   Executive Director
         General Counsel                         Pharmaceuticals

                                      A2-5
<PAGE>


                                  ATTACHMENT 3
                      PRODUCT MANUFACTURING SPECIFICATIONS





 THE TERMS OF THE PRODUCT MANUFACTURING SPECIFICATIONS ARE THOSE CONTAINED IN 
         THE APPLICABLE REGISTRATION FILING FOR THE PRODUCT, AS AMENDED

                                      A3-1
<PAGE>
                                                       
                                  ATTACHMENT 4

                    ROYALTY METHODOLOGY AND ACCOUNTING TERMS

*



                                                         *

*


1.       *

*









                  *                                           *

                  *                                           *
                                                              *

                  *                                           *

                  *                                           *

                  *
                                                                             *
                  *
                          *                                                  *
                          *                                                  *
                          *                                                  *
                          *
                               *                                             *
                               *                                             *
                               *                                             *
                               *                                             *
                               *                                             *
                               *                                             *
                               *                                             *
                               *                                             *
                               *                                             *
                          *                                                  *

                  *                                                          *
                                      A4-1
<PAGE>

2.       *

*






3.       *

*





4.       *

*


         (a)      *




         (b)      *



         (c)      *



 4.1     *

*








                                      A4-2
<PAGE>

4.2      *

*



4.3      *

*










4.4      *

*













5.       *

*





*




                                      A4-3
<PAGE>











6.       *

*






*















7.       *

*








                                      A4-4
<PAGE>



8.       *

*









9.       *

*





9.1      *

*



9.2      *

*



*












                                      A4-5
<PAGE>


                                        *

*

                                        *

*














<PAGE>

                                        *

*







*

















*







*


         (i)      *


         (ii)     *


         (iii)    *


                                    A4-SA-1
<PAGE>

         (iv)     *


*


*

*












*

*

*












*






                                    A4-SA-2
<PAGE>









*

                                    A4-SA-3
<PAGE>


                                  ATTACHMENT 6

               PREMARKETING EXPENSES AND REIMBURSEMENT PROCEDURES



 THE DETAILS RELATING TO THE DEFINITION AND TREATMENT OF PREMARKETING EXPENSES *

                                      A6-1


                                                                   EXHIBIT 10.35

  PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED  (DESIGNATED BY AN ASTERIX (*) AND
   WHITE SPACE) AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION
   PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT DATED AUGUST 21, 1997; 
                                FILE NO. 0-15609

                               SECOND AMENDMENT TO
                        DEVELOPMENT AND LICENSE AGREEMENT

Effective as of January 17, 1997,  Agouron  Pharmaceuticals,  Inc., a California
corporation  ("Agouron") and Japan Tobacco Inc., a Japanese  corporation ("JT"),
for good and valuable consideration, agree as follows:

(Terms containing an initial capitalized letter,  except as explicitly otherwise
indicated,  shall  have the  meanings  stated  in the  Development  and  License
Agreement, as defined below).

                                   BACKGROUND

Agouron and JT entered into a Development  and License  Agreement dated December
1, 1994 and the First Amendment to the Development  and License  Agreement.  The
Development and License Agreement,  as amended is hereinafter referred to as the
"D&L Agreement."

The parties have conducted collaborative  development activities pursuant to the
terms of the D&L Agreement.

Agouron and JT contemplated  that a joint venture,  to be formed pursuant to the
terms  of the  D&L  Agreement,  would  act  as the  licensor  to  implement  the
commercialization of the Compound and/or Products in the Joint Venture Exclusive
Territories.  The parties further  contemplated that the joint venture would not
directly  conduct actual  manufacturing or sales of the Compound and/or Products
but would only manage  sublicensing  activities for the Compound and/or Products
to a number of sublicensees.

A single third party has been identified which desires to sublicense the Product
in the Joint Venture Exclusive  Territories pursuant to the terms of a Letter of
Intent  ("LOI")  dated  January 17, 1997 between  such third party  (hereinafter
referred to as "Third Party Licensee") and Agouron and JT.

                                    AMENDMENT

          Agouron and JT now wish to amend the D&L Agreement as follows:

1.       The Joint  Venture,  as set forth in Attachment 1 to the D&L Agreement,
         is hereby retroactively dissolved effective as of January 1, 1996.

2.       Upon  dissolution  of the Joint Venture and  notwithstanding  any other
         provisions  of the D&L  Agreement,  the  rights  granted  to the  Joint
         Venture shall revert to the parties.



<PAGE>


3.       Agouron  agrees to enter into the LOI under which Agouron will grant to
         the Third Party  Licensee under its  applicable  intellectual  property
         rights  the  exclusive  right,  even  as  to  Agouron  (with  right  of
         sublicense) to sell the Product in the Field in the Licensed Territory,
         as such terms are defined in the LOI.

4.       JT agrees to enter into the LOI under  which JT will grant to the Third
         Party Licensee under its applicable  intellectual  property  rights the
         exclusive right,  even as to JT, (with right of sublicense) to sell the
         Product  in the  Field in the  Licensed  Territory,  as such  terms are
         defined in the LOI.

5.       Subject to the terms of the D&L  Agreement,  Agouron  and JT will share
         obligations  and  responsibilities  related to the license to the Third
         Party  Licensee.  Administration  of such license will be undertaken in
         accordance  with the procedures  established by Section 4.01 of the D&L
         Agreement by *


6.       In the event that the license to the Third Party Licensee terminates or
         becomes  void in the future,  JT and Agouron  agree that rights to sell
         the Product in the Field in the Joint Venture Exclusive Territories, as
         such terms are defined in the LOI, shall *

                                provided,   however,   the   parties   agree  to
         jointly determine *




7.        The provisions of Section 2.01(k) are amended to provide that each 
          party hereby *

                                                                              as
          such terms are defined in the LOI.

8.        Section 5.03 is amended to read in full as follows:

                   Section 5.03     Premarketing Expenses.  Premarketing 
          Expenses shall mean those
         *




                  Premarketing Expenses shall be deemed to be *
                  and shall be treated in accordance with Attachment 4 to the 
          D&L Agreement.
 
                                      2
<PAGE>

9.        Section 5.04(b) is amended to provide that *









10.       Agouron and JT agree to share the *                        pursuant to
          the provisions of Paragraph 29 of the LOI as follows:  the first *
                                               the remaining *            shall 
          be shared  equally by Agouron  and
          JT.

11.       Except as modified by the terms  contained  herein, the provisions of 
          the D&L Agreement  shall remain in full force and effect.


AGOURON PHARMACEUTICALS, INC.               JAPAN TOBACCO INC.



By:      /s/ Gary E. Friedman, Esq.       By:      /s/ Tatsuya Yoneyama

Name:    Gary E. Friedman, Esq.           Name:    Tatsuya Yoneyama

Title:   Vice President and               Title:   Vice President,
         General Counsel                           Pharmaceuticvals Div

Date:    1/17/97                          Date:    1/29/1997

                                       3



                                                                   EXHIBIT 10.37

                   PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED
                     (DESIGNATED BY AN ASTERIX (*) AND WHITE
                      SPACE) AND FILED SEPARATELY WITH THE
                   SECURITIES AND EXCHANGE COMMISSION PURSUANT
                     TO A REQUEST FOR CONFIDENTIAL TREATMENT
                     DATED AUGUST 21, 1997; FILE NO. 0-15609









                                     AG3340

                        DEVELOPMENT AND LICENSE AGREEMENT

                                     BETWEEN

               F. HOFFMANN-LA ROCHE LTD AND HOFFMANN-LA ROCHE INC.

                                       AND

                          AGOURON PHARMACEUTICALS, INC.






                                  June 11, 1997


<PAGE>
<TABLE>
<CAPTION>

                                TABLE OF CONTENTS

                                                                                                         Page No.


<S>                 <C> 

BACKGROUND...................................................................................................1

ARTICLE I           DEFINITIONS..............................................................................1

   Section 1.01     Affiliate................................................................................2
   Section 1.02     Agouron Patent Rights....................................................................2
   Section 1.03     Agouron Technology.......................................................................2
   Section 1.04     Allowable Expenses.......................................................................2
   Section 1.05     *........................................................................................2
   Section 1.06     Combination Product......................................................................2
   Section 1.07     Compound or AG3340.......................................................................2
   Section 1.08     Co-Promote...............................................................................3
   Section 1.09     Control, Controlled or Controlling.......................................................3
   Section 1.10     Development Costs........................................................................3
   Section 1.11     Development Program......................................................................3
   Section 1.12     Development Program Patent Rights........................................................3
   Section 1.13     Development Program Technology...........................................................4
   Section 1.14     Dossier..................................................................................4
   Section 1.15     Effective Date...........................................................................4
   Section 1.16     European Co-Promotion Countries..........................................................4
   Section 1.17     Global Joint Development Committee.......................................................4
   Section 1.18     Global Joint Finance Committee...........................................................4
   Section 1.19     Global Joint Marketing Committee.........................................................5
   Section 1.20     Initial Commercial Sale..................................................................5
   Section 1.21     Marketing Company........................................................................5
   Section 1.22     Net Sales................................................................................5
                   (a)     Adjusted Gross Sales..............................................................5
                   (b)     Net Sales.........................................................................5
   Section 1.23     *........................................................................................5
   Section 1.24     North American Territory.................................................................6
   Section 1.25     Patent Rights............................................................................6
   Section 1.26     Product..................................................................................6
   Section 1.27     Profits and Losses.......................................................................6
   Section 1.28     Registration.............................................................................6
   Section 1.29     Roche Technology.........................................................................6
   Section 1.30     Roche Territory..........................................................................6
   Section 1.31     Syntex Agreement.........................................................................6
   Section 1.32     Territory................................................................................6
   Section 1.33     Trade Dress..............................................................................6
   Section 1.34     Trademark(s).............................................................................6
   Section 1.35     United States............................................................................7


                                                                       i
<PAGE>
                               TABLE OF CONTENTS
                                  (Continued)

                                                                                                         Page No.


<S>                 <C>   

ARTICLE II          COMMERCIAL RIGHTS........................................................................7

   Section 2.01     License Grants...........................................................................7
   Section 2.02     Non-Cancer Indications of the Compound and Other Chemical
                   Compounds Covered by Claims Included in the Agouron Patent Rights........................10
   Section 2.03     Diligent Efforts to Develop and Market..................................................11
   Section 2.04     Discontinuance of the Development Program...............................................11

ARTICLE III         SHARING AND PROTECTION OF INTELLECTUAL PROPERTY.........................................12

   Section 3.01     Patents.................................................................................12
   Section 3.02     Infringement of Patents of Third Parties................................................14
   Section 3.03     Trademarks..............................................................................14
   Section 3.04     Information Exchange....................................................................15
   Section 3.05     Confidentiality.........................................................................15
   Section 3.06     Publication.............................................................................16

ARTICLE IV          MANAGEMENT STRUCTURE OF COLLABORATION...................................................17

   Section 4.01     Management Committees...................................................................17
   Section 4.02     Development and Registration............................................................18
   Section 4.03     Marketing...............................................................................21
   Section 4.04     Supply of Compound and Product..........................................................26
   Section 4.05     Research Activities.....................................................................27

ARTICLE V           LICENSE FEES, PROFIT AND LOSS SHARING AND ROYALTIES;
                    DEVELOPMENT COSTS; PREMARKETING EXPENSES;
                    GENERAL LICENSING TERMS.................................................................27

   Section 5.01     License Fees, Profit and Loss Sharing and Royalties.....................................28
   Section 5.02     Development Costs.......................................................................29
   Section 5.03     Premarketing Expenses...................................................................30
   Section 5.04     General Licensing Terms.................................................................31
   Section 5.05     Foreign Currency........................................................................37

ARTICLE VI          TERM AND TERMINATION....................................................................38

   Section 6.01     Termination for Breach..................................................................38
   Section 6.02     Termination by Roche....................................................................38
   Section 6.03     Termination by Mutual Agreement.........................................................39
   Section 6.04     Termination Upon Bankruptcy.............................................................39
   Section 6.05     Disposition of Inventory................................................................39
   Section 6.06     Effect of Termination...................................................................39


                                                                       ii        
<PAGE>
                                TABLE OF CONTENTS
                                  (Continued)

                                                                                                         Page No.

<S>                 <C> 

ARTICLE VII         WARRANTIES AND COVENANTS; INDEMNITIES; INSURANCE;
                    DISPUTE RESOLUTION; GOVERNMENTAL APPROVALS;
                    EXPORT CONTROLS.........................................................................40

   Section 7.01     Warranties and Covenants................................................................40
   Section 7.02     Indemnities; Insurance..................................................................41
   Section 7.03     Dispute Resolution......................................................................42
   Section 7.04     Governmental Approvals..................................................................43
   Section 7.05     Export Controls.........................................................................43

ARTICLE VIII        DISCLOSURE OF AGREEMENT.................................................................43

   Section 8.01     Disclosure of Agreement.................................................................43

ARTICLE IX          GENERAL PROVISIONS......................................................................43

   Section 9.01     No Implied Licenses.....................................................................43
   Section 9.02     No Waiver...............................................................................44
   Section 9.03     Severability; Government Acts...........................................................44
   Section 9.04     Ambiguities.............................................................................44
   Section 9.05     Notification of Authorities.............................................................44
   Section 9.06     No Agency...............................................................................44
   Section 9.07     Captions; Number; Official Language.....................................................44
   Section 9.08     Force Majeure...........................................................................44
   Section 9.09     Amendment...............................................................................45
   Section 9.10     Applicable Law..........................................................................45
   Section 9.11     Notices.................................................................................45
   Section 9.12     Assignment..............................................................................45
   Section 9.13     Succession..............................................................................46

                                                                          APPENDICES

     Schedule 1          Agouron Patent Rights............................................................S1-1
     Schedule 2          Agouron Patent Rights Compounds..................................................S2-1
     Schedule 3          Section 7.01(c) Exclusion List...................................................S3-1
     Exhibit 1           Initial Development Plan for AG3340 Development Program..........................E1-1
                         Schedule 1   AG3340 Strategic Development Plan................................E1-S1-1
     Exhibit 2           Initial Development Budget for AG3340 Development Program........................E2-1
     Attachment 1        Development Costs and Reimbursement Procedures...................................A1-1
                         Schedule 1   Agouron/Roche Development Program Expenditures...................A1-S1-1
                         Schedule 2   Agouron Development Cost Invoice.................................A1-S2-1
                         Schedule 3   Roche Development Cost Invoice...................................A1-S3-1
     Attachment 2        Accounting Terms/Definitions.....................................................A2-1
     Attachment 3        Product Manufacturing Specifications.............................................A3-1
     Attachment 4        Trademark License Agreement......................................................A4-1

                                                                       iii
</TABLE>
<PAGE>

         This AG3340 Development and License Agreement ("Agreement"),  dated for
reference  purposes only this 11th day of June 1997,  is by and between  Agouron
Pharmaceuticals,  Inc., a corporation duly organized and existing under the laws
of the state of California,  having a principal place of business at 10350 North
Torrey Pines Road, La Jolla,  California,  United States of America (hereinafter
referred to as "Agouron,"  the first  party),  and F.  Hoffmann-La  Roche Ltd, a
corporation duly organized and existing under the laws of Switzerland,  having a
principal place of business at CH-4002-Basel, Switzerland, and Hoffmann-La Roche
Inc., a corporation  duly  organized and existing under the laws of the state of
New Jersey,  having a  principal  place of  business  at 340  Kingsland  Street,
Nutley, New Jersey, United States of America (hereinafter  collectively referred
to as "Roche," the second  party).  Agouron and Roche are sometimes  hereinafter
each referred to as a party (collectively "parties") to this Agreement.

                                   BACKGROUND

         On June 19,  1996,  Agouron and Roche  entered  into a Letter of Intent
("LOI")  to  confirm  the  parties   formation  of  a  collaboration   on  terms
substantially  in  accordance  with  those  contained  in  Exhibit  A to the LOI
("Exhibit A"). A component of such  collaboration  includes the  development and
commercialization of the chemical compound known as AG3340 ("AG3340"), which was
invented  by Agouron  employees.  While  Exhibit A states the basic terms of the
understanding  between the  parties,  the  parties  agreed that the terms of the
collaboration would be subject to further negotiation and preparation of further
agreements  containing the full terms of the collaboration  between the parties.
This  Agreement is entered into for the purpose of setting forth the  definitive
terms  under  which  the  parties  shall  collaborate  in  the  development  and
commercialization of AG3340 products.

         NOW,  THEREFORE,  in  consideration  of the  premises,  and the  mutual
covenants,  benefits and  obligations  set forth  herein,  the parties  agree as
follows:

                             ARTICLE I - DEFINITIONS

         When used in this Agreement, each of the following terms shall have the
meaning set out in this  Article I. All  references  to  Articles,  Attachments,
Sections,   Schedules,  Exhibits  and  Appendices  shall,  except  as  otherwise
explicitly provided, refer to the Articles,  Attachments,  Sections,  Schedules,
Exhibits and Appendices of this Agreement,  all of which are incorporated herein
by reference.

         Section 1.01 "Affiliate" means any person, organization or entity which
is, directly or indirectly,  controlling, controlled by, or under common control
with Roche or Agouron, as the case may be. The term "control"  (including,  with
correlative meaning, the terms "controlled by" and "under common control with"),
as used with respect to any person or entity, means the possession,  directly or
indirectly,  of the power to direct,  or cause the direction of, the  management
and  policies  of such  person,  organization  or entity,  whether  through  the
ownership of voting securities,  or by contract or court order or otherwise. The
ownership of voting securities of a person, organization or entity shall not, in
and of itself, constitute "control" for 

                                       1
<PAGE>


purposes  of this  definition,  unless  said  ownership  is of a majority of the
outstanding  securities  entitled  to  vote of such a  person,  organization  or
entity. For purposes of this Agreement,  Genentech,  Inc. shall be considered to
be an Affiliate of Roche.

         Section 1.02      "Agouron Patent Rights" means: (i) *








         Section 1.03      "Agouron Technology" means *







         Section 1.04      "Allowable Expenses" has the meaning described in 
Schedule 1 to Attachment 2.
        
         Section 1.05      *



         Section 1.06      "Combination Product" means any *



         Section 1.07      "Compound" or "AG3340" means the chemical compound 
known as AG3340, whose chemical name is as follows:
         
                  *










                                       2
<PAGE>










         Section 1.08      "Co-Promote" means the right of a party, subject to 
applicable law, to *


                                                                The term 
"Co-Promote" as used above, shall include the  *






         Section 1.09      "Control," "Controlled" or "Controlling" means *



         Section 1.10      "Development Costs" has the meaning described in 
Section 5.02 and Attachment 1.
       

         Section 1.11      "Development Program" means all *


















         Section 1.12      "Development Program Patent Rights" means *


                                       3
<PAGE>














         Section 1.13      "Development Program Technology" means any *














         Section  1.14  "Dossier"  means the  document  which is filed  with and
approved by a government or health authority for purposes of  Registration,  for
example, a New Drug Application or a Marketing Authorization Application.

         Section 1.15 "Effective Date" means June 19, 1996.

         Section 1.16      "European Co-Promotion Countries" means *



         Section 1.17 "Global Joint  Development  Committee" has the meaning set
forth in Section 4.01.

         Section 1.18 "Global Joint Finance Committee" has the meaning set forth
in Section 4.01.

                                       4
<PAGE>

         Section 1.19 "Global  Joint  Marketing  Committee"  has the meaning set
forth in Section 4.01.

         Section 1.20      "Initial Commercial Sale" means the first commercial 
sale of a Product arising out of the Development Program for *
         


         Section 1.21      "Marketing Company" means the company marketing a 
Product in a country; provided, however, that if the *
         





         Section  1.22 "Net Sales" and the related term  "Adjusted  Gross Sales"
shall have the following meanings:

         (a)      "Adjusted Gross Sales" means the *








         (b)      "Net Sales" means the amount calculated by subtracting from 
the amount of Adjusted Gross Sales *





         Section 1.23      *










                                       5
<PAGE>




         Section  1.24 "North  American  Territory"  means the United  States of
America, Canada and Mexico.

         Section 1.25      "Patent Rights" means, collectively, *


         Section 1.26      "Product" means any *



         Section 1.27      "Profits and Losses" have the meanings set forth in 
Schedule 1 to Attachment 2.

         Section  1.28  "Registration"   means  the  official  approval  by  the
government or health  authority in a country (or  supra-national  organizations,
such as the European  Agency for the  Evaluation of Medical  Products)  which is
required for a Product to be offered for sale in such  country,  including  such
authorizations  as may be required  for the  production,  importation,  pricing,
reimbursement and sale of such Product,  and for subsequent  regulatory  filings
for line extensions and/or additional indications of such Product.

         Section 1.29      "Roche Technology" means any *








         Section 1.30      "Roche Territory" means *


         Section 1.31      "Syntex Agreement" means the Agreement between Syntex
(U.S.A.) Inc. and Agouron dated June 8, 1993, as amended.

         Section 1.32      "Territory" means *

         Section  1.33  "Trade  Dress"  means  any  materials   supporting   the
commercialization  of a  Product,  including,  but not  limited  to,  packaging,
package inserts,  advertising or selling aids, brochures,  mailings and/or other
marketing or packaging materials.  The definition of Trade Dress shall not refer
to trade names used by a party to designate the name of such party.

         Section 1.34 "Trademark(s)" means any trademark selected and owned by a
party and  registered  (or applied  for) by such  party,  its  Affiliate(s)  and
sublicensee(s)  in the  Territory  for 

                                       6
<PAGE>
use in connection with the marketing of Products. The definition of Trademark(s)
shall not refer to trade  names  used by a party to  designate  the name of such
party.

         Section 1.35 "United  States" means the United  States of America,  its
territories,  possessions and  protectorates  (including  Puerto Rico),  and the
District of Columbia.

                         ARTICLE II - COMMERCIAL RIGHTS

         Section 2.01 License Grants. To implement the  commercialization of the
Compound and/or Products arising out of the Development  Program  (including the
research  activities  conducted  by the parties  pursuant to the  provisions  of
Section 4.05), the parties,  subject to the other applicable obligations of this
Agreement,  grant and accept the license  rights  provided below in this Article
II.

         (a)      *






         (b)      *







         (c)      *







         (d)      In accordance with the provisions of Section 4.03, the parties
agree, unless prohibited by law or regulation, to *




         (e)      *




                                       7
<PAGE>






























                  (i)      *



                  (ii)     *






         (f)      *





                                       8
<PAGE>

         (g)      *



         (h)      *







         (i)      *












         (j)  Notwithstanding   anything  to  the  contrary  contained  in  this
Agreement,  each party agrees to sell the Compound and/or Products for non-human
pharmaceutical uses only with the written agreement of the other party.

         (k)      *














         (l)      *



                                       9
<PAGE>







         (m)      *

































         Section 2.02      Non-Cancer Indications of the Compound and Other 
                           Chemical Compounds Included Within the Agouron 
                           Patent Rights.

         (a) Subject to the terms of the Syntex Agreement, except as provided in
Section 2.02(b) and Section 4.02(o),  Agouron, in its sole discretion,  shall be
entitled to make, use, 

                                       10
<PAGE>

develop and  commercialize  the Compound and other chemical  compounds  included
within the Agouron Patent Rights for non-cancer indications.


         (b)      *










         Section 2.03 Diligent Efforts to Develop and Market. The right of Roche
to market Products for cancer indications in all countries  comprising the Roche
Territory  shall be subject to diligent  development  and  marketing  efforts by
Roche,  on a  country-by-country  basis.  For  purposes  of this  Section  2.03,
commercialization  efforts  undertaken by Roche's  Affiliates  and  sublicensees
shall be attributed to Roche. Roche shall begin commercial sales of at least one
(1) Product arising out of the Development  Program for cancer  indications in a
country no later than one (1) year after the first  Registration of such Product
for cancer  indications  in such country;  provided,  however,  that such period
shall be extended  for as long as  diligent  efforts to begin  commercial  sales
continue.  Following  commencement of commercial sales in a country, Roche shall
keep such Product  reasonably  available  to the public for cancer  indications;
provided,  however,  that Roche shall be released from this obligation if supply
of the Product for cancer  indications  is not  available  for such  country and
Roche is not responsible for arranging for the commercial  production and supply
of such Product for such country. Roche agrees to use diligent efforts to market
which are  comparable to the efforts it then uses with its own cancer  products.
If,  after one hundred  twenty (120) days  written  notice of a failure:  (i) to
begin commercial  sales of at least one (1) such Product for cancer  indications
in a country in a timely manner;  or (ii) following  commencement  of commercial
sales in a country, to keep such Product reasonably  available to the public for
cancer  indications,  Roche fails to fulfill its  obligation  under this Section
2.03,  Agouron shall have the right,  as the sole and exclusive  remedy for such
failure,  to elect to have the licenses  granted to Roche in such country  under
the terms of  Section  2.01(a)  converted  to a  non-exclusive  license  to both
parties. Both parties,  under such non-exclusive  license,  shall have the right
(with right of sublicense)  to  manufacture,  use,  offer for sale,  sell and/or
import in or into  such  country  such  Product  for  cancer  indications  under
applicable Agouron Patent Rights, New MMP Compound Patent Rights and Development
Program Patent Rights, and using applicable Agouron Technology, Roche Technology
and Development  Program  Technology.  Agouron,  its Affiliates and sublicensees
shall  have no  royalty  or  other  obligations  to  Roche  resulting  from  the
manufacture,  use, offer for sale, sale and/or import in or into such country of
such  Product  by  Agouron,  its  Affiliates  and  sublicensees.  No  additional
consideration shall be due because of the exercise by Agouron of such election.

         Section 2.04      Discontinuance of the Development Program.  *


                                       11
<PAGE>





















          ARTICLE III - SHARING AND PROTECTION OF INTELLECTUAL PROPERTY

         Section 3.01      Patents.

         (a)      *















         (b)      *








                                       12
<PAGE>








         (c)      *








         (d)      *




         (e)      *









         (f)      *















                                       13
<PAGE>



         Section 3.02 Infringement of Patents of Third Parties.  Each party, its
Affiliates and sublicensees, and their respective employees and agents shall use
diligent  efforts  to  avoid  infringement  of  patents  of any  third  party in
discovering,   developing,   manufacturing  and  commercializing  the  Compound,
intermediates  thereof and/or Products.  However,  neither party, its Affiliates
and sublicensees,  and their respective  employees and agents shall be liable to
the other party, its Affiliates and sublicensees, and their respective employees
and agents if the  practice  of the Patent  Rights,  Agouron  Technology,  Roche
Technology,  and/or Development  Program Technology in discovering,  developing,
manufacturing  or  commercializing  the Compound,  intermediates  thereof and/or
Products  infringe any patent of any third party.  If either party becomes aware
of any claim or suit by any third  party  for  infringement  of a patent of such
third party in connection with the discovery,  development,  manufacture, use or
sale of the Compound,  intermediates  thereof and/or Products by a party hereto,
such party shall  notify the other party in writing of such claim or suit within
thirty  (30) days  thereafter.  Each  party  agrees to  render  such  reasonable
assistance  as the other party may request in defending  any such claim or suit.
The parties shall  mutually agree to any settlement of any existing or potential
infringement  claim or action  that would  require the payment of any royalty or
lump sum payment to a third party,  except that if the parties  cannot  promptly
reach  agreement,  they shall appoint an  independent  patent counsel to give an
opinion,  which  shall be  binding  on the  parties,  as to  whether  there is a
substantial risk that the third party patent is both valid and infringed. If the
opinion  is that there is a  substantial  risk that the patent is both valid and
infringed,  the marketing  party of a Product in a country,  after  consultation
with the other party, may settle the matter in its sole discretion on such terms
as it deems appropriate. If both parties are participating in the marketing of a
Product in a country,  the parties shall mutually agree to any settlement of any
infringement  claim or action  that would  require the payment of any royalty or
lump sum payment to a third party;  if the parties are unable to mutually  agree
on the  settlement,  then the issue shall be decided by binding  arbitration  in
accordance with the provisions of Section 7.03 hereof.  Unless the parties agree
otherwise,  the costs of  defending  or  settling  any such claim or action in a
country where the parties are sharing  Profits and Losses from the sales of such
Product shall be a deductible  expense when  calculating  Profits and Losses for
such Product for such country. *








         Section 3.03      Trademarks.  *




                                       14
<PAGE>




















         Section 3.04      Information Exchange.

         (a)      *











         (b)      *








         Section 3.05  Confidentiality.  Except as otherwise expressly specified
in this  Agreement  and except for the proper  exercise  of any  license  rights
granted or rights reserved under this Agreement, Roche and Agouron shall keep in
confidence  and  shall  each  use its  best  

                                       15
<PAGE>

efforts  to cause  its  respective  Affiliates,  employees,  directors,  agents,
consultants,   clinical  research  associates,  outside  contractors,   clinical
investigators  and sublicensees to whom it is permitted to disclose  information
pursuant  to the  terms of this  Agreement  to  retain  in  confidence:  (i) all
confidential and proprietary information of the other party, including *
                     
and/or the marketing and business plans of such other party that is disclosed to
it hereunder;  and (ii)  Development  Program  Technology.  Without limiting the
foregoing,  Roche and Agouron  shall each  exercise the same degree of diligence
and care with respect to the  above-described  information  as it exercises with
respect to its other proprietary information. Each party represents to the other
party  that it  maintains  policies  and  procedures  designed  to  prevent  the
unauthorized  disclosure of its proprietary data and information.  Agouron shall
be responsible,  under the direction of the Global Joint Development  Committee,
for  authorizing  the supply of any drug samples of the Compound and/or Products
to third party researchers. Roche and Agouron shall each be entitled to disclose
the above-described  information to consultants,  clinical research  associates,
outside  contractors,  collaborators,  clinical  investigators  and other  third
parties who are engaged,  in accordance  with the procedures  established  under
Section  4.02(h),  and who are subject to  confidentiality  and use  obligations
equivalent  to  those  applicable  to the  disclosing  party  hereunder,  and to
governmental or other regulatory and/or health  authorities,  to the extent that
such  disclosure  is  reasonably   necessary  to  obtain   patents,   to  obtain
authorization  or to conduct  clinical  trials on the Compound or  Products,  to
prepare the Dossier and/or otherwise to fulfill its obligations pursuant to this
Agreement.  Roche and Agouron shall also have the right to disclose  Development
Program  Technology to persons it proposes to enter into business  relationships
with, if such persons are subject to confidentiality  obligations  equivalent to
those applicable to the disclosing party hereunder. The preceding obligations of
confidentiality  shall be waived  as to  information  which  the party  claiming
waiver can demonstrate, based on written records: (i) is in the public domain at
the time of disclosure  hereunder;  (ii) comes into the public domain through no
fault of the party claiming waiver; (iii) was known to the party claiming waiver
prior to its  disclosure  under this  Agreement,  unless  such  information  was
obtained from the other party on a  confidential  basis;  (iv) is disclosed on a
non-confidential  basis to the party  claiming  waiver by a third party having a
lawful  right  to make  such  disclosure  on a  non-confidential  basis;  (v) is
published  with the prior  mutual  agreement  of the parties  after having given
consideration to appropriate commercial and competitive factors; (vi) comes into
the public domain through governmental  publication of a patent application;  or
(vii)  is  required  to be  disclosed  to  file a  patent  or  other  regulatory
application or to comply with applicable laws and  regulations.  The obligations
under this Section 3.05 shall  survive to the later of: (i) ten (10) years after
the end of the Development  Program;  or (ii) the termination or expiration date
of the last to expire of any license(s)  granted pursuant to this Agreement,  to
the extent the  Development  Program  Technology,  Agouron  Technology  or Roche
Technology  is applicable  to the practice of grants under such  license(s);  or
(iii) the  expiration  date of the last to expire of any  patent(s)  within  the
Patent Rights on a Product.

         Section 3.06 Publication.  Agouron and Roche each acknowledge the other
party's interest in publishing certain of its results of the Development Program
to obtain recognition  within the scientific  community and to advance the state
of scientific  knowledge.  Both parties also recognize their mutual interests in
obtaining valid patent  protection for the Compound,  intermediates  thereof and
Products.  Consequently,  either party, its employees or consultants  wishing to
make a  publication  shall provide the other party the  opportunity  to review a
draft  
                                       16
<PAGE>

manuscript  at  least  thirty  (30)  days  prior  to the  date  of the  intended
submission for publication  and, upon the other party's written  request,  shall
delay  submission for a period (not greater than  forty-five  (45) days from the
date  of  such  written  request)  sufficient  to  provide  for  the  filing  of
appropriate patent application(s) for any patentable subject matter disclosed in
such  publication.  Furthermore,  in  acknowledgment  that  certain  Development
Program Technology, while not of a patentable subject matter, could be necessary
for the protection of the commercial interests of the parties, the parties agree
that the Global Joint  Development  Committee or its delegates shall review in a
timely  manner  (not  greater  than  thirty (30) days from the date of a written
request to the Global  Joint  Development  Committee  or its  delegates) a draft
manuscript,   and  propose  the  conditions  under  which  the  portion  of  the
Development  Program Technology  disclosed in the draft manuscript that could be
necessary to protect the  commercial  interests of the parties can be published.
If the Global Joint Development  Committee or its delegates do not object to the
publication  within thirty (30) days from the date of such written request,  the
requesting party (subject to the other party's right to request the 45-day delay
described  above for patentable  subject matter  disclosed in such  publication)
shall be free to  publish  such  manuscript.  If the  Global  Joint  Development
Committee or its delegates  object to the  publication of a portion of the draft
manuscript,  it shall  indicate  specifically  what  modification  to the  draft
manuscript it believes is appropriate to protect the commercial interests of the
parties and the reasons therefor.  After giving reasonable  consideration to the
suggestions of the Global Joint Development Committee, the party wishing to make
a publication shall have the final authority to determine the scope,  timing and
content of the publication.

               ARTICLE IV - MANAGEMENT STRUCTURE OF COLLABORATION

         Section 4.01 Management Committees.  The collaborative  development and
commercialization  effort  for the  Compound  and  Products  arising  out of the
Development  Program for cancer indications shall be coordinated and overseen by
four (4) committees, namely:

                  (a) A joint  committee  responsible  to discuss and coordinate
         the global development efforts directed to Registration of Products for
         cancer  indications  (hereinafter  referred  to as  the  "Global  Joint
         Development Committee").

                  (b) A joint  committee  responsible  to discuss and coordinate
         the global  marketing of Products for cancer  indications  (hereinafter
         referred to as the "Global Joint Marketing Committee").

                  (c) A joint  committee  responsible to oversee and approve the
         planning  and   budgeting  of  revenues   and  costs   resulting   from
         Co-Promotional  activities  if the  parties are  Co-Promoting  Products
         (hereinafter referred to as the "Global Joint Finance Committee").

                  (d) A joint committee responsible,  inter alia, to discuss and
         coordinate   the   research   activities   described  in  Section  4.05
         (hereinafter referred to as the "Joint Research Committee").

These committees (and the project teams  established by such  committees)  shall
work in close cooperation.

                                       17
<PAGE>

         Section  4.02   Development   and   Registration.   Roche  and  Agouron
acknowledge   their  mutual   intention   generally  to  take  a  collaborative,
commercially  reasonable  approach to the timely development of the Compound and
Products  arising out of the  Development  Program for cancer  indications.  The
parties  further   acknowledge  their  mutual  willingness  to  discuss  ad  hoc
agreements  to  establish   appropriate   mechanisms   for  such   collaborative
development.  Recognizing  the  importance of timely  initiation of  development
activities,  however, Roche and Agouron agree to the following basic approach to
development of Products for cancer  indications and to the conduct of the Global
Joint Development Committee activities.

         (a)      The Global Joint Development Committee shall meet in regular 
intervals, at least
*                              and shall be co-chaired by  representatives  from
Roche and Agouron.  Each party shall be entitled to  participate  in decisions
affecting the Development Program and to attend all key development-related 
meetings. The meeting locations of the Global Joint Development Committee shall 
*                            facilities,  or at other  sites as agreed to by the
parties.  Meeting  minutes shall be promptly prepared and approved by designated
representatives of each of the  parties.  Each  party  shall pay all of its  
respective  expenses  for such meetings.

         (b)      *

                                        Each  party  shall also  designate  a  
financial  advisor to the  Global  Joint  Development  Committee.  Each  party's
members of the Global Joint Development  Committee shall reasonably consider the
adoption of the other party's development suggestions,  and shall accept as many
of such  development  suggestions  as are  reasonable,  based upon  medical  and
business  rationale,  drug  supply,  and the  need to  conduct  the  development
activities  in an  expeditious  manner.  If the  parties  agree,  an  authorized
sublicensee  for a Compound which is  participating  in the  development of such
Compound may participate in such discussions.

         (c)      If the Global Joint  Development  Committee is unable to reach
agreement  on any decision  required of it, the issue shall be submitted  for
consideration, *

                                                           If they are unable to
agree, then the issue shall be resolved by *


         (d) The decisions of the Global Joint  Development  Committee  shall be
binding  on the  parties  and  shall  be  confirmed  in  writing  by  designated
representatives of each of the parties.

         (e) The Global Joint Development Committee shall be responsible for the
coordination  of  the  global  collaborative  development  efforts  directed  to
Registration  of  Products  arising  out of the  Development  Program for cancer
indications  in the Territory and such other matters which the parties  mutually
agree to assign to it. The Global Joint Development Committee may, if necessary,
* provided,  however,  that the  Development  Program  shall be designed for the
purpose of  achieving  Registration  of Products  for cancer  indications  in an
expeditious manner including the *
                                                The  Global  Joint   

                                       18
<PAGE>

Development
Committee   shall  also  have  the authority to make decisions concerning *

arising out of the Development Program for cancer indications. Additionally, the
Global  Joint  Development  Committee  shall  establish  reasonable  publication
procedures concerning  Development Program Technology and, upon the request of a
party,  the Global Joint  Development  Committee or its delegates shall review a
draft  manuscript  and  propose  the  conditions  under which the portion of the
Development  Program  Technology  disclosed  in the  draft  manuscript  which is
necessary to protect the commercial interests of the parties can be published.

         (f)      The Global Joint Development Committee shall review and 
discuss the Development Program for any country(s) involved, *



                  Development of Products arising out of the Development Program
for cancer indications shall be initially based upon the *


and other  development  activities  to be performed by each of the parties.  The
Global Joint Development Committee shall review and discuss any projected change
in a quarterly  operating budget which exceeds the previously budgeted amount by
more  than *              The  parties  acknowledge  that,  while  the  initial
worldwide  development  plan and  development  budget  are  designed  to achieve
Registration  of  Products  arising  out of the  Development  Program for cancer
indications  in  many  countries  of the  Territory,  it will  be  necessary  to
supplement  the  initial  development  budget to achieve  Registration  in other
countries of the Territory. The Global Joint Development Committee shall * shall
be attached to this Agreement as updated Exhibits.  To the extent possible,  the
Development  Program shall provide for the  generation and use of data which can
be utilized to achieve  Registration * Specific information which is required to
achieve  Registration  in  individual  countries  shall be provided  for, to the
extent possible,  in the Development Program. Each party's members of the Global
Joint  Development  Committee,  in addition to the joint  development of AG3340,
will consider and discuss in good faith *

         (g) Roche and Agouron shall  collaborate to complete  clinical  studies
aimed at achieving Registration of Products arising out of the Development 
Program *

                  During the  conduct  of the  Development  Program,  the Global
Joint Development  Committee shall assign study or other development  activities
of  the  Development  Program  (including  deployment  of  human  and  financial
resources) among the parties, principally based upon: *



                                      
a party not  responsible  for a  

                                       19
<PAGE>

development  activity  may provide  advisory  and support  services to the other
party. *


















         (h)  Roche  and  Agouron  shall  each  use  qualified  persons  in  the
development activities of the Development Program. In accordance with procedures
to be established by the Global Joint Development  Committee,  Agouron and Roche
may also engage consultants,  clinical research associates, outside contractors,
collaborators,  clinical  investigators  and  other  third  parties,  as  may be
necessary or  desirable,  to assist them in carrying out their  responsibilities
under the Development Program.

         (i) All work in  connection  with the  development  of the  Compound or
Products,  to the extent required by applicable  laws or  regulations,  shall be
conducted in  accordance  with Good  Laboratory  Practices,  Good  Manufacturing
Practices  and Good  Clinical  Practices,  as such rules of practice are amended
from time to time.

         (j) Roche and Agouron,  through the Global Joint Development Committee,
shall keep each other  informed of the  progress of the work being  performed by
them pursuant to the Development Program. This shall include progress reports as
required by the Global Joint Development Committee *
                                               Agouron and Roche shall  provide
each  other with  access to its  relevant  records  and  facilities  to permit a
reasonable  review of the progress,  from time to time, of the activities  being
performed by such party pursuant to the Development Program.

         (k) Each  party's  members of the Global  Joint  Development  Committee
shall report and make recommendations to their managements regarding the matters
discussed at the meetings of the Global Joint Development Committee.

         (l) Each party agrees to use its diligent  efforts in  responding  in a
timely  manner,  but not more than thirty (30) days,  to requests from the other
party for preclinical and clinical results and other information  concerning the
Development  Program  to  enable  the  other  party to  comply  with  regulatory
requirements for the Development  Program.  To the extent possible,  the parties
shall * in the  clinical  studies  aimed at achieving  Registration  of Products
arising out of the Development Program for cancer indications.

                                       20
<PAGE>

         (m) After consultation with Roche concerning the selection of a generic
name for the Compound,  Agouron shall have responsibility for making application
to the World Health Organization  International  Non-proprietary  Name Committee
and the U.S. Adopted Names Council to secure a generic name for the Compound.

         (n)  Subject  to the  other  provisions  of this  Agreement  (including
Section  5.04(b)),  in the Roche  Territory,  * for a Product arising out of the
Development  Program  for  cancer  indications  shall  * in the  North  American
Territory,  * for a Product  arising out of the  Development  Program for cancer
indications *
  Prior to Registration of a Product arising out of the Development Program for 
cancer indications in a country, the party
*
                                                                                
on such Product for cancer  indications,  including  communicating with health
and/or regulatory authorities in such country; provided,  however, to the extent
reasonably possible, the other party shall have the right to review, comment and
participate  in  communications  concerning  such  Product  with  health  and/or
regulatory  authorities in such country.  Notwithstanding  the  preceding,  each
party shall be entitled to have *

                                    as may be necessary  to obtain and  maintain
the  Registration  on a Product  arising out of the  Development  Program for
cancer indications in any other country in the Territory.

         (o)      *






         Section 4.03      Marketing.  The *

Roche and Agouron agree to the following basic approach to marketing of Products
for cancer  indications and the conduct of the Global Joint Marketing  Committee
activities.

         (a)      The Global Joint Marketing Committee shall meet in regular 
intervals, at least *                   per year, and shall be co-chaired by  
representatives  from  Roche  and  Agouron.  Each  party  shall be  entitled  to
participate  in discussions  affecting the marketing of Products  arising out of
the  Development  Program for cancer  indications in the Territory and to attend
all key  marketing-related  meetings.  The meeting locations of the Global Joint
Marketing  Committee  shall * or at other  sites as  agreed  to by the  parties.
Meeting   minutes  shall  be  promptly   prepared  and  approved  by  designated
representatives  of  each  of the  parties.  Each  party  shall  pay  all of its
respective expenses for such meetings.

         (b)      *

                                       21
<PAGE>

                                                                Each party shall
also designate a financial advisor to the Global Joint Marketing Committee.
If the parties agree, an authorized sublicensee for a Product may participate in
such discussions.

         (c)      If the Global Joint  Marketing  Committee  is unable to reach 
agreement  on any  decision  required of it, the issue shall be submitted  for
consideration, *

                                                                                
If they are unable to agree, then the issue shall be resolved by the *


         (d) A decision of the Global Joint Marketing Committee shall be binding
on the parties, and shall be confirmed in writing by designated  representatives
of each of the parties.

         (e) The Global  Joint  Marketing  Committee  shall be  responsible  for
drafting a global marketing plan for a Product(s) arising out of the Development
Program for cancer indications (hereinafter referred to as the "Global Marketing
Plan") *
                                                                                
The Global Joint Marketing Committee shall also be responsible for *

                           to the extent possible.  The Global Joint Marketing 
Committee may, if necessary, *                                           The
Global Joint Marketing Committee may also review and discuss decisions 
concerning the *


         (f) Under the direction of the Global Joint Marketing Committee,  Roche
 shall be responsible for * for a Product arising out of the Development Program
 for cancer indications *
                             To the extent  possible,  the local marketing plans
shall be consistent with the Global Marketing Plan.

         (g)      It is the intent of the parties that a *
                                                               arising out of 
the Development Program for cancer indications wherever possible throughout the
Territory. The parties acknowledge their intention to use, if appropriate, the *
           arising out of the Development Program for cancer indications 
wherever possible.

         (h) The parties  agree,  unless  prohibited  by law or  regulation,  to
exclusively  Co-Promote  Products  arising  out of the  Development  Program for
cancer  indications in the North American Territory under a single Trademark and
based upon a marketing plan to be agreed upon by the parties.  Agouron and Roche
agree to share equally  (50/50) Profits and Losses earned or incurred during the
fiscal year of the Marketing  Company from the sale of a Co-Promoted  Product in
the North American  Territory.  The parties further agree,  unless prohibited by
law or  regulation,  to  discuss  in good faith  future  rights  for  Agouron to
exclusively  Co-Promote  with  Roche  Products  arising  out of the  Development
Program  for  cancer  indications  in any or  all of the  European  Co-Promotion
Countries.  The parties' future European Co-Promotion arrangement shall be based
upon and subject to the following criteria:

                                       22
<PAGE>

                  (i)      *



                  (ii)     *





                  (iii)    *


                  (iv)     Agouron's right to Co-Promote such Product in a 
       selected European country shall be subject to *



                  (v)      Agouron shall have the right to make a *






                  (vi)     Agouron shall have the *





                  (vii)    *











In the countries where the parties are Co-Promoting  Products,  the Global Joint
Marketing  Committee shall assign  Co-Promotional  activities  among the parties
based upon: *





                                       23
<PAGE>

                                            a party not  responsible  for a  
Co-Promotional  activity may provide advisory and support services to the other
party.  *
                                                                                
in each of the countries in the North  American  Territory  shall be overseen
and approved by the Global Joint Marketing Committee.  Notwithstanding the 
preceding, the parties agree that *
                                                              for cancer 
indications in each of the countries in the North American Territory *
  .  The parties shall provide

             Furthermore, unless the parties agree otherwise, Agouron *
                                                 assigned by the Global Joint 
Marketing Committee to Co-Promotional activities for such Product in a European
Co-Promotion Country *


                                                              The Global Joint 
Marketing Committee may *
to advise and support Co-Promotional activities if the parties are Co-Promoting
Products.  The Global  Joint  Marketing  Committee  shall  establish  procedures
concerning  the scope  and  conduct  of  activities  (including  decision-making
procedures) *

         (i)      The Global Joint Finance Committee shall *




                                     the parties, through the Global Joint 
Marketing Committee, shall *

                                    If a party significantly fails to fulfill 
its obligation to provide its agreed upon *
                  in a  Co-Promotional  country  during  a  fiscal  year  of the
Marketing Company, then the parties shall negotiate in good faith an appropriate
adjustment  in the Profit  Sharing  percentage  for such country for such fiscal
year period.

         (j)      The Marketing Company in each country shall be responsible for
distribution of the Product in such country.

         (k)      *








                                       24
<PAGE>

         (l) Roche and Agouron shall each use qualified persons in the marketing
activities of Products.  In accordance  with procedures to be established by the
Global Joint Marketing Committee, Agouron and Roche may also engage consultants,
and other third  parties,  as may be necessary or  desirable,  to assist them in
carrying out their marketing  responsibilities  provided that internal resources
are not then feasibly or practically  available from either of the parties which
can perform in similarly  expeditious and cost-efficient  manner the tasks to be
assigned to such  consultants  and third parties;  provided  however,  that each
party *


         (m) Roche and Agouron,  through the Global Joint  Marketing  Committee,
shall keep the other party  informed of their  marketing  activities,  and shall
review,  discuss  and agree  upon the  conduct of  additional  post-Registration
clinical studies for a Product for cancer indications which are not conducted as
part of the Development  Program and marketing  studies for a Product for cancer
indications;   the  conduct  of  clinical  studies  for  a  Product  for  cancer
indications  which are  conducted as part of the  Development  Program  shall be
governed by the provisions of Section 4.02. This shall include  progress reports
as required by the Global Joint Marketing Committee *
                      and the planned activities of the succeeding period.

         (n) Each party's members of the Global Joint Marketing  Committee shall
report and make  recommendations  to their  managements  regarding  the  matters
discussed at the meetings of the Global Joint Marketing Committee.

         (o) After  Registration  of a Product  arising  out of the  Development
Program  for cancer  indications  in a country,  the  Marketing  Company of such
Product in such country shall be  responsible  for  maintaining  the Dossier for
such  Product.  The  Marketing  Company in a country  shall be  responsible  for
responding,  in a timely  manner,  to inquiries and for  reporting  adverse drug
reactions  related to such  Product  after the  Product is on the market in such
country. Notwithstanding the Marketing Company's ultimate responsibility for the
professional  services and health and/or regulatory  authorities  communications
relating to such Product after the Product is on the market in a country, to the
extent  reasonably  possible,  the other  party  shall have the right to review,
comment and  participate  in  communications  concerning  such  Product with the
health and/or regulatory authorities in such country.  Furthermore,  Agouron and
Roche  shall  each be  entitled  to  respond to  routine  medical  questions  or
inquiries directed to them. Each party shall use its best efforts to provide the
other party with all information  reasonably  necessary to respond  properly and
promptly to any such  questions or  inquiries;  the parties shall also use their
best efforts to keep such information  current.  Without limiting the foregoing,
Agouron  and Roche  agree to  notify  the other  party of any  severe,  serious,
alarming or unexpected complaints which they receive,  whether or not determined
to be attributable to a Product,  by telephone within twenty-four (24) hours and
in writing within three (3) business days of receipt of the complaint. All other
complaints  shall be forwarded by a party to the other party within  thirty (30)
calendar  days of its receipt of the  complaint.  The parties  shall confer with
respect to responding to anticipated inquiries and questions.

                                       25
<PAGE>

         Section 4.04      Supply of Compound and Product.

         (a) It is anticipated that timely  development of the Compound and/or a
Product will require the manufacture of significant  amounts of the Compound and
that  successful  worldwide  commercialization  of the Compound and/or a Product
will require  annual  production of large  quantities  of the Compound  and/or a
Product. As part of the Development Program for the Compound, *


                                            the parties also agree to continue
to use technically and  commercially  reasonably  efforts to reduce the costs of
manufacturing   the   Compound   and  a  Product   throughout   the   period  of
commercialization of the Product.  The Global Joint Development  Committee shall
have the authority to make  decisions  concerning the sourcing of clinical trial
supply of the Compound and Products  arising out of the Development  Program for
cancer  indications.  Roche and Agouron,  through the Global  Joint  Development
Committee,  agree to cooperate  to identify  low-cost  commercial  manufacturing
sources for the Compound and/or Products arising out of the Development  Program
for cancer  indications.  To assure a continuous supply of the Compound and/or a
Product during clinical development and commercialization, Roche and Agouron may
also engage one or more third party contract manufacturers for production of the
Compound and/or a Product. *


















         (b)  All  Product  is  to  be   manufactured  in  accordance  with  the
specifications to be determined during  development and later attached hereto in
Attachment 3 to this Agreement and any amendments thereto.  All Product shall be
furnished with a certificate of analysis.

         (c) Each party shall grant the other party a right of  reference to the
drug  master  file for a Product in the  countries  where the other  party,  its
Affiliates or sublicensees are marketing such Product,  and shall take all other
steps as may be reasonably  requested by a manufacturer  of such Product for the
limited  purpose of enabling it to manufacture the Product for such other party.
The  manufacturer  shall  manufacture the Product in compliance with the Dossier
for the 
                                       26
<PAGE>

Product.  Each party  shall  promptly  and fully  advise the other  party of any
changes,  alterations  or  amendments to the drug master file for the Product or
any  amendments,  instructions  or  specifications  required  by the  health  or
regulatory authority, and the parties shall confer with respect to the best mode
of compliance with any such requirements.

         (d) In the event  any  Product  delivered  hereunder  must be  recalled
because of action by the relevant health authority,  the parties shall cooperate
fully with each other in conducting such recall to the full extent  necessary to
ensure that the recall is effective.  Prior to initial Registration of a Product
in a country,  any recall  expenses for such  Product in such  country  shall be
included in the Development Costs. After initial  Registration of a Product in a
country,  the party  marketing such Product in such country shall be responsible
for any recall  expenses for such Product in such country.  Any recall  expenses
incurred  by the party  marketing a Product in a country  shall be a  deductible
expense when  calculating  Profits and Losses from the sales of such Product for
such country.

         Section 4.05      Research Activities.  During the *





                   Preclinical research activities shall include *

                                    The Joint Research Committee may establish *
                                                                                
               The Joint Research  Committee shall  establish  procedures
concerning the scope and conduct of the research activities (including decision-
making procedures) assigned to such project teams.  *





by the Global Joint Development Committee (or, alternatively, the Joint Research
Committee constituted pursuant to the terms of the Research Program).  *

                                            developed  or acquired by or on 
behalf of Agouron or Roche,  independently  or jointly,  as the case may be, in 
the conduct of the above described research activities and *


        ARTICLE V - LICENSE FEES, PROFIT AND LOSS SHARING AND ROYALTIES;
       DEVELOPMENT COSTS; PREMARKETING EXPENSES; GENERAL LICENSING TERMS

         All of the  accounting  terms used in this Article V, if  identified by
the use of  capitalization  of the first  letter of each  word,  shall  have the
meaning  described in Attachment 2, which  

                                       27
<PAGE>

attachment  shall also  contain  details  of the  calculation,  accounting,  and
sharing of Profits and Losses.

         Section 5.01      License Fees, Profit and Loss Sharing and Royalties.

         (a) In  partial  consideration  for the  rights  granted  to  Roche  by
Agouron,  Roche hereby agrees to pay to Agouron  non-refundable license issuance
fees as follows:

                                                                  USD(MM)
                                                                  -------
        By June 28, 1996                                          $ 10.0


              *                                                       *


              *                                                       *


              *                                                       *


              *                                                       *


              *                                                       *


              *                                                       *



                                         TOTAL                     $  *


         (b)      In partial consideration for the rights granted each of the 
parties in this Agreement, the parties agree as follows:

                  (i) Unless the  parties  agree upon  another  sharing  method,
         Profits  or  Losses  from the  sales  of  Products  arising  out of the
         Development  Program  for  cancer  indications  in a country  where the
         parties are  Co-Promoting  Products shall be shared between the parties
         in accordance with the provisions of Sections 4.03(h) and 4.03(i).

                  (ii)     In countries where the parties are not Co-Promoting 
Products, Roche shall pay Agouron *


         (c)      In partial consideration for the rights granted to Roche by 
Agouron, Roche and Agouron hereby agrees as follows:

                  (i)      Any *




                  (ii)     *




                                       28
<PAGE>

                  (iii)    As soon as possible, Agouron and Roche agree to 
discuss and negotiate in good faith *





         Section 5.02      Development Costs.

         (a)      The parties shall share Development Costs as follows:

                  (i)      From the Effective Date, Roche shall be responsible 
for payment of eighty percent (80%) of the Development Costs *

                                            and  Agouron  shall be  responsible 
         for  payment of twenty  percent  (20%) of such  Development  Costs;  
         provided, however,  that Roche shall not be  responsible  for  
         Development  Costs incurred for  services  performed  before June 19,  
         1996,  even if such services  are paid for after  such  date.  If  
         Agouron  has  elected to Co-Promote a Product arising out of the 
         Development  Program for cancer indications in one or more European 
         Co-Promotion Countries, *



                  (ii)     Development Costs incurred for services *

                                                                                
         In  addition to its twenty  percent  (20%)  share of  worldwide  
         Development Costs because of its Co-Promotional activities in the North
         American  Territory, *



                  (iii)    Agouron's prorata percentage share of Development 
         Costs for such European Co-Promotion Country *



                  (iv)     Development Costs allocated to a European 
         Co-Promotion Country shall




                                                                              
          Unless the parties agree otherwise, *
               shall be deemed to have been incurred for the benefit of the *

                                       29
<PAGE>

         (b) Within * days after the end of a semi-annual calendar period ending
on  either  June 30 or  December  31  during  which the  parties  have  incurred
Development  Costs,  each party  shall  prepare and deliver to the other party a
full and true  accounting  of such  party's  actual  Development  Costs for such
semi-annual  period.  The form of the report shall be consistent with the format
presented in Schedule 1 to  Attachment  1, and shall detail  actual  Development
Costs by major cost categories,  consistent with the accounting  classifications
and methods  agreed upon by the  parties.  The  accuracy of the report  shall be
reviewed and signed by an appropriate financial employee of the reporting party.
The calculation of Development  Costs shall not include any selling or marketing
costs and expenses.

         (c)      Development Costs shall be funded and reimbursed as described 
in Attachment 1.

         (d) Each  party  shall  maintain  books of  account  and  complete  and
accurate records of all of its Development  Costs in sufficient detail to permit
the other  party to confirm  the  correctness  of such  items.  Each party shall
provide  the other  party,  upon  reasonable  request,  with  copies of invoices
supporting significant third party expenditures. *


















                                                     To   the   extent    actual
Development  Costs vary from reported  Development  Costs,  adjustments shall be
made
to future invoices.

         (e)  Additional  details  relating  to  the  definition,   calculation,
reporting  requirements and  reimbursement  procedures for Development Costs are
set forth in Attachment 1.

         Section 5.03      Premarketing  Expenses.  If  Agouron  and Roche are  
Co-Promoting  a Product  arising  out of the  Development  Program  for  cancer 
indications in a country, then
*




                                       30
<PAGE>


         Section 5.04      General Licensing Terms.

         (a)      Profits and Losses for countries where the parties are 
Co-Promoting a Product arising out of the Development  Program for cancer  
indications shall be determined on a *
                                    Attachment    2   sets   forth    additional
definitions and details relating to the calculation of Profits and Losses.

         (b)  It  is  the  intent  of  the  parties  that  if  the  parties  are
Co-Promoting  a  Product  arising  out of the  Development  Program  for  cancer
indications in a country, then the parties shall *


                                            If applicable laws, regulations or
accounting rules do not permit such accounting treatment, *


         (c) No sales  shall be deemed to have  occurred  as the result of sales
between and among the  parties,  their  Affiliates  and  sublicensees;  it being
understood that sales occur when made to non-Affiliated  third party purchasers.
A sale of a Product  shall be deemed  to have  been  made upon the  earliest  of
invoicing or delivery of the Product for value to a  non-Affiliated  third party
purchaser.  In the case of a sale or other disposal of a Product for value other
than in an arm's length  transaction  exclusively  for money,  such as barter or
counter  trade,  sales shall be  calculated  using the fair market  value of the
Product (if higher than the stated sales price) in the country of disposal.

         (d)      *













         (e)      *









                                       31
<PAGE>

         (f) In  calculating  Profits and Losses with  respect to a  Combination
Product in a  country,  the  parties  shall  enter into good faith  negotiations
regarding the percentage of the Adjusted Gross Sales of such Combination Product
to be used in  calculating  Profits and Losses with respect to such  Combination
Product  in  such  country.  If the  parties  are  unable  to  agree  upon  such
percentage,  the  percentage  of the  Adjusted  Gross Sales of such  Combination
Product  to be used in  calculating  Profits  and  Losses  with  respect to such
Combination Product in a country shall be equal *



                                                If the numerator and denominator
cannot be determined in the manner set forth above, then the numerator *


                                                              In each case,  the
cost is to be determined in accordance  with the party's  standard  accounting
procedures.

         (g) In calculating royalties with respect to a Combination Product, the
parties shall enter into good faith negotiations regarding the percentage of the
Net  Sales  of such  Combination  Product  to be used in  calculating  royalties
payable with respect to such Combination Product on a country-by-country  basis.
If the parties are unable to agree upon such percentage,  royalties with respect
to a Combination Product in a country shall be *




                                                               If the  numerator
and  denominator  cannot be determined in the manner set forth above, then the
numerator shall be the *

                                                               In each case,  
the cost is to be  determined  in  accordance  with the party's standard 
accounting procedures.

         (h) Division of Profits and Losses from the sales of a Product  arising
out of the Development Program for cancer indications shall be * from the date
of the Initial Commercial Sale or license to a third party, its Affiliates, or
sublicensees of such Product in such country (or, if the
parties are Co-Promoting a Product in a country, the date on which premarketing 
expenses are first incurred), *









                                       32
<PAGE>


         (i)  Royalties  due on the  sale of a  Product  shall be  payable  on a
country-by-country  basis from the date of Initial  Commercial  Sale by a party,
its Affiliates or sublicensees of such Product in such country, *








Notwithstanding the preceding where a country is included in the European Union,
an extension  in the period  during which the payment of royalties is due on the
sale of a Product  resulting  from the  application  of the  provisions of (iii)
above shall not be  applicable  if  prohibited  by law.  The  obligation  to pay
royalties shall be imposed only once with respect to each unit of Product sold.

         (j) The parties  agree that the  accounting  and payment of Profits and
Losses and  reimbursement  of  Allowable  Expenses  from the  Co-Promotion  of a
Product  arising  out of the  Development  Program for cancer  indications  in a
country shall comply with the following terms and conditions:

                  (i)      As soon as possible, but no later than *
                                             the  Marketing  Company in such 
         country shall provide the  non-Marketing  Company with its good faith  
         estimate of the amount of  Adjusted  Gross  Sales and  Sublicense  
         Revenues in such country for such  Co-Promoted  Product for such 
         calendar month, and the  non-Marketing  Company shall submit to the  
         Marketing  Company its good faith  estimate of its  Sublicense  
         Revenues  in such  country for such  Co-Promoted Product for such 
         calendar month.

                  (ii) * after  the  end of a  calendar  quarter  in  which  the
         parties  have  Co-Promoted  a Product  arising  out of the  Development
         Program for cancer  indications  in a country,  the  Marketing  Company
         shall pay the non-Marketing Company its share of *
          generated by the Co-Promotion of such Product in such country for such
         calendar quarter, or submit to the non-Marketing Company an invoice for
         its  share of any * in such  country  for such  calendar  quarter;  the
         non-Marketing  Company  shall  pay  such  invoice  within * The * for a
         calendar quarter shall be based on the *

                                                               for the 
         applicable  calendar  quarter and the budget of Allowable  Expenses for
         such country for the applicable calendar quarter (agreed to by the 
         parties pursuant to the provisions of Section 4.03(i)), *
                           A party's share of                                  
         for a country  in a  calendar  quarter  shall be  determined  pursuant
         to the provisions of Section 5.01(b)(i).

                                       33
<PAGE>

                  (iii)  Within * after the end of a  calendar  quarter in which
         the parties have  Co-Promoted a Product  arising out of the Development
         Program for cancer  indications  in a country,  the  Marketing  Company
         shall *
                                                                                
         incurred in such country during such calendar quarter.  A party's *
                  shall be based on the *                                       
         (agreed to by the  parties  pursuant to the terms of Section  4.03(i)),
         as such budget is revised and updated.  If the parties have *          
                                      the Marketing Company may


                                    If the Marketing Company utilizes *



                  (iv) * after the end of a semi-annual  calendar  period ending
         on  either  June 30 or  December  31  during  which  the  parties  have
         Co-Promoted a Product arising out of the Development Program for cancer
         indications,  each party shall furnish and deliver to the other party a
         full and true accounting of its actual Adjusted Gross Sales, Sublicense
         Revenues and Allowable  Expenses for such Product for such  semi-annual
         period for each  country in which the  parties  have  Co-Promoted  such
         Product.  The  reporting  party's  Adjusted  Gross  Sales,   Sublicense
         Revenues and Allowable  Expenses for such  semi-annual  period shall be
         reviewed  and  signed  by an  appropriate  financial  employee  of  the
         reporting party.

                  (v)      The net amount of any payment adjustments due between
         the parties because of differences *

                                                                         The net
         amount  of any  payment  adjustments  due  between  the  parties  
         because  of differences in *




                  (vi) If a party in good faith  disputes the  correctness  of a
         portion  of the  other  party's  accounting,  the party  shall  only be
         obligated to reimburse the undisputed portion of *

                                                                  and shall be  
         obligated  to reimburse or pay the  balance,  if any,  upon  resolution
         of the disputed  issues.  The parties agree to use their best faith 
         efforts to resolve any disputes  concerning the correctness of 
         Allowable  Expenses and the calculation of Profit and Losses as soon as
         possible.

                  (vii) Any  payments  due pursuant to the terms of this Section
         5.04(j)  that are not paid on or before the date such  payments are due
         shall  bear  interest  at the lower of: (A) the  average  one (1) month
         London Interbank  Offered Rates, as reported by Datastream from time to
         time, plus one hundred (100) basis points;  or (B) the highest 

                                       34
<PAGE>

         interest  rate permitted by applicable  law,  calculated on the number 
         of days in each month that such payment is delinquent.

         (k) The parties  agree that the  accounting  and  payment of  royalties
shall comply with the following terms and conditions:

                  (i)      As soon as possible, but no later than *             
         after the end of a calendar  month,  a party owing a royalty  shall
         provide the other party with *


                  (ii)     On or before the last business day in *
                  of each and every  calendar  year for as long as royalties are
         due following the commencement of the marketing of Products,  the party
         owing  the  royalty  shall  pay to the  other  party a sum equal to the
         aggregate of the royalty due on such party's *




                  (iii) * after the end of a semi-annual  calendar period ending
         on either June 30 or December 31 during which there was a Net Sale of a
         Product upon which a royalty was due, the party owing the royalty shall
         furnish and deliver to the other  party a full and true  accounting  of
         the actual Net Sales of such  Product for such  semi-annual  period for
         each  country  for which such  royalty is due.  The  reporting  party's
         accounting of royalty for such semi-annual period shall be reviewed and
         signed by an appropriate financial employee of the reporting party, and
         shall identify all relevant details regarding *



                  (iv)     The net amount of any payment adjustments due between
         the parties because of differences in *

         The net amount of any payment adjustments due between the parties 
         because of differences in *


                  (v) Any  royalty  payments  due that are not paid on or before
         the date such payments are due shall bear interest at the lower of: (A)
         the average one (1) month London  Interbank  Offered Rates, as reported
         by Datastream  from time to time,  plus one hundred (100) basis points;
         or  (B)  the  highest   interest  rate  permitted  by  applicable  law,
         calculated  on the number of days in each  month  that such  payment is
         delinquent.

         (l) Each party shall maintain and cause its Affiliates and sublicensees
to maintain books of account and complete and accurate records pertaining to the
sale or other disposition of Products, Allowable Expenses and of the royalty and
other amounts  payable under this  Agreement in sufficient  detail to permit the
other party to confirm the correctness of such items. *


                                       35
<PAGE>





























         (m) A party  owing a royalty or other  payment to the other party shall
be entitled to withhold from such payment the amount, if any, of any withholding
tax assessable to the party due the payment, provided evidence of payment of any
such  tax is  promptly  provided  to  such  party.  If  any  taxes  (other  than
value-added taxes) are imposed on payments of royalties or profits to Agouron or
Roche and are  required  to be withheld  therefrom,  such taxes shall be for the
account of Agouron or Roche,  respectively,  and the  payments  shall be reduced
accordingly.  Roche and Agouron  shall each advise the other and provide it with
copies of the tax receipts for all taxes  deducted from the payment of royalties
or profits.

         (n) The costs of  defending  or settling any claim or suit by any third
party for  infringement of a patent of such third party by a party's practice of
the Patent Rights,  Agouron  Technology,  Roche Technology,  and/or  Development
Program Technology in discovering,  developing, manufacturing or commercializing
the Compound, intermediates thereof and/or Products shall be *


         (o) Upon  expiration  of the  foregoing  Profits and Losses  sharing or
royalty obligations in a country, which shall also be the expiration date of the
licenses granted in such country 

                                       36
<PAGE>

pursuant to Sections 2.01(a),  2.01(b), 2.01(c) or 2.03, each party *






         (p) The parties agree in the future to use their reasonable  efforts to
negotiate any additional licensing terms for the Compound, intermediates thereof
and/or Products  arising out of the Development  Program for cancer  indications
which may be necessary to clarify the rights and obligations of the parties.

         Section 5.05      Foreign Currency.

         (a) Development Costs, Patent and Trademark Costs,  Profits and Losses,
Adjusted Gross Sales, Net Sales,  Sublicense Revenues,  Allowable Expenses,  and
any  royalty  amounts  shall be stated in United  States  dollars.  Payments  of
Development  Costs,  Patent and Trademark Costs,  Profits and Losses,  Allowable
Expenses and  royalties  shall be made in United  States  dollars.  Any required
conversion of Development Costs, Patent and Trademark Costs, Profits and Losses,
Adjusted Gross Sales, Net Sales,  Sublicense Revenues,  Allowable Expenses,  and
any royalty  amounts to United  States  dollars  shall be done using the monthly
average rate of exchange for the calendar month in which such Development Costs,
Patent and Trademark Costs, Profits and Losses, Adjusted Gross Sales, Net Sales,
Sublicense Revenues,  Allowable Expenses,  and any royalty amounts were incurred
or first determined.

         (b)      The conversion from a foreign currency to United States 
dollars shall be made by *




         (c)      *
















                                       37
<PAGE>




         (d) If London  Interbank  Offered Rates are no longer  available due to
the implementation of the European Economic and Monetary Union, any reference to
the London  Interbank  Offered  Rates in this  Agreement  shall be replaced by a
comparable  reference interest rate for the single currency "EURO" determined at
the financial center where the reference is made. If no such reference  interest
rate can be determined at such financial center,  the parties shall agree upon a
new reference  interest rate to be used as appropriate in this Agreement in lieu
of the unavailable London Interbank Offered Rates.

                        ARTICLE VI - TERM AND TERMINATION

         Section 6.01  Termination for Breach.  Either party may, at its option,
terminate  this  Agreement for cause in the event the other party shall commit a
material  breach of this Agreement  (including the failure of a party to pay its
undisputed share of Development Costs) and shall fail to cure such breach during
the one hundred  twenty (120) day period  (thirty (30) day period in the case of
any payment default)  following  receipt of a written notice of such breach from
the non-breaching  party. After the end of the applicable cure period, the party
who has the right of termination may exercise its  termination  option by giving
the breaching  party prior  written  notice of at least fifteen (15) days of its
election to terminate.  Any  termination of this Agreement shall not release the
breaching party from any obligations  incurred hereunder,  and the non-breaching
party shall be  entitled to pursue an action for damages  arising as a result of
such material breach.

         Section 6.02      *

         (a)      *



















                                       38
<PAGE>









         (b)      *







         (c)      *





         Section 6.03      Termination  by Mutual  Agreement.  The parties may 
at any time  terminate  this  Agreement,  in part or in its entirety,  by mutual
written agreement.

         Section 6.04 Termination Upon Bankruptcy.  In the event that a party is
subject to any proceeding  under the bankruptcy laws, or to the appointment of a
receiver,  trustee or  liquidator  of its business or  substantially  all of its
assets,  and such  proceeding,  if  involuntary,  is not dismissed or discharged
within one hundred fifty (150) days after such proceeding is instituted, or upon
the  liquidation,  dissolution,  or  winding  up  of  its  business,  then  this
Agreement,  at the  election  of the other  party,  shall be  terminated  in its
entirety  for cause upon a notice in writing of at least  fifteen (15) days from
the party who is not bankrupt or insolvent.

         Section 6.05 Disposition of Inventory. In the event of the cancellation
or  termination  of any license  rights with respect to a Product,  inventory of
such Product may be sold for up to six (6) months after date of  cancellation or
termination, provided required payments, if any, are paid thereon.

         Section 6.06 Effect of  Termination.  The termination of this Agreement
shall, to the extent not otherwise  expressly  provided  herein,  not affect the
rights and  obligations of the parties under this Agreement with respect to: (i)
the parties'  obligations of  confidentiality,  indemnification and compensation
for  services  performed;  (ii) a party's  liability  for failure to fulfill its
obligations  or  undertakings  under  this  Agreement;  and (iii) the  rights or
obligations  of the  parties  otherwise  expressly  stated in the  Agreement  to
survive the  termination  of this  Agreement.  If this  Agreement is terminated,
Agouron's  obligations  under Sections 2.02(b) and 4.02(o) shall terminate.  Any
other provisions of this Agreement which by their nature are 

                                       39
<PAGE>

intended to survive termination shall also survive. Upon any termination of this
Agreement in its entirety because of a breach of the other party,  neither party
waives any rights to any remedies it may have arising out of the termination. In
the event of any breach by a party with respect to  obligations  which  continue
after a termination in its entirety of this Agreement,  the non-breaching  party
shall  have all  remedies  available  to it, as if the  Agreement  were still in
effect on the date of such breach.

              ARTICLE VII - WARRANTIES AND COVENANTS; INDEMNITIES;
     INSURANCE; DISPUTE RESOLUTION; GOVERNMENTAL APPROVALS; EXPORT CONTROLS

         Section 7.01      Warranties and Covenants.

         (a) Each party  represents  and warrants to the other party that it has
the legal power, authority and right to enter into this Agreement and to perform
all of its respective  obligations  set forth herein,  including the attachments
hereto.

         (b) Agouron represents and warrants that, to the best of its knowledge,
it has disclosed to Roche the material results of preclinical and human clinical
testing of the Compound completed prior the Effective Date.

         (c) Agouron represents and warrants that, as of the date this Agreement
is  executed,  other  than the  patent  applications  and/or  patents  listed in
Schedule  3,  it was  not  aware  of the  existence  of any  patents  owned  and
Controlled by a third party covering the Compound which would materially prevent
the parties from commercializing the Compound.

         (d) Each  party  covenants  that it shall not commit any act or fail to
take any action which,  in any  significant  way,  would be in conflict with its
material obligations under this Agreement and the attachments hereto.

         (e) Each party  promises to comply in all  material  respects  with the
terms of the licenses granted to it under this Agreement,  and with all federal,
state,  local  and  foreign  laws,  rules  and  regulations  applicable  to  the
development,   manufacture,   distribution,  import  and  export,  and  sale  of
pharmaceutical products pursuant to this Agreement.

         (f) EXCEPT AS OTHERWISE  EXPRESSLY PROVIDED IN THIS AGREEMENT,  EACH OF
THE PARTIES MAKES NO WARRANTIES,  EXPRESSED OR IMPLIED,  OF  MERCHANTABILITY  OR
FITNESS FOR A  PARTICULAR  PURPOSE OF ANY  SUBJECT  MATTER  INCLUDED  WITHIN THE
CLAIMS OF THE PATENT RIGHTS,  INCLUDING THE COMPOUND. THE PARTIES UNDERSTAND AND
AGREE THAT  DEVELOPMENT  AND  COMMERCIALIZATION  OF THE COMPOUND AND/OR PRODUCTS
WILL  INVOLVE  APPROVAL  BY  REGULATORY  AUTHORITIES,   AND  THAT  NO  PARTY  IS
GUARANTEEING THE SAFETY OR EFFICACY OF THE COMPOUND AND/OR PRODUCTS, OR THAT THE
COMPOUND AND/OR PRODUCTS WILL RECEIVE THE REQUIRED APPROVALS.

                                       40
<PAGE>

         Section 7.02      Indemnities; Insurance.

         (a) Roche shall indemnify and hold harmless Agouron and its Affiliates,
employees,  and agents (an "Agouron Indemnified Party") from and against any and
all  liabilities,  losses,  damages,  costs, or expenses  (including  reasonable
investigative  and  attorneys'  fees)  which the Agouron  Indemnified  Party may
incur, suffer or be required to pay resulting from or arising in connection with
any  product   liability  or  other   claims,   other  than  claims  for  patent
infringement,  arising from the use by any person of any Product,  to the extent
such product  liability or other claim results from the  negligent,  reckless or
intentional  misconduct  of Roche,  its  Affiliates  or  sublicensees,  or their
respective employees and agents, or on account of Roche's failure to fulfill its
obligations or undertakings under this Agreement;  provided, however, that in no
event shall Roche be liable to an Agouron  Indemnified  Party for any  indirect,
incidental,  special or  consequential  damages,  including  loss of revenues or
profits from sales of Products.

         (b) Agouron shall indemnify and hold harmless Roche and its Affiliates,
employees, and agents (a "Roche Indemnified Party") from and against any and all
liabilities,   losses,   damages,   costs,  or  expenses  (including  reasonable
investigative  and attorneys' fees) which the Roche Indemnified Party may incur,
suffer or be required to pay,  resulting from or arising in connection  with any
product  liability or other claims,  other than claims for patent  infringement,
arising  from the use by any person of any  Product,  to the extent such product
liability or other claim  results from the  negligent,  reckless or  intentional
misconduct of Agouron,  its  Affiliates  or  sublicensees,  or their  respective
employees  and  agents,  or on account  of  Agouron's  failure  to  fulfill  its
obligations or undertakings under this Agreement;  provided, however, that in no
event shall  Agouron be liable to a Roche  Indemnified  Party for any  indirect,
incidental,  special or  consequential  damages,  including  loss of revenues or
profits from sales of Products.

         (c) To the extent that a product liability or other claim, other than a
claim  for  patent  infringement,   results  from  the  negligent,  reckless  or
intentional misconduct of both of the parties,  their Affiliates,  sublicensees,
or their  respective  employees  and agents,  the  parties  agree to share in an
equitable  manner  such  liabilities,  losses,  damages,  costs,  or expenses in
proportion  to the  relative  fault of each of the  parties,  their  Affiliates,
sublicensees, or their respective employees and agents.

         (d) Unless the parties agree otherwise, all other liabilities,  losses,
damages,  costs, or expenses (including reasonable  investigative and attorneys'
fees) under this Section  7.02  relating to or involving a Product in a country,
except as provided by the terms of Sections  7.02(a),  (b) and (c), shall be the
responsibility  of the party  marketing such Product in such country.  The party
marketing a Product in a country shall indemnify the non-marketing party in such
country from and against any and all  liabilities,  losses,  damages,  costs, or
expenses  (including  reasonable  investigative  and attorneys' fees) which such
non-marketing  party may incur,  suffer or be required to pay resulting  from or
arising in connection  with any product  liability or other  claims,  other than
claims  for  patent  infringement,  arising  from the use by any  person of such
Product  in such  country.  Section  3.02  sets  forth  the  parties'  liability
obligations  arising from claims for patent  infringement.  Any payments made by
the party marketing a Product in a country pursuant to the terms of this Section
7.02(d) shall be a deductible  expense when calculating  Profits and Losses from
the sales of such Product for such country.

                                       41
<PAGE>

         (e)      The aforesaid obligations of the indemnifying party shall be 
subject to the indemnified party fulfilling the following obligations:

                  (i) The  indemnified  party  shall  fully  cooperate  with the
         indemnifying party in the defense of any claims,  actions,  etc., which
         defense shall be controlled by the indemnifying party.

                  (ii) The indemnified  party shall not, except at its own cost,
         voluntarily  make any payment or incur any expense  with respect to any
         claim or suit  without the prior  written  consent of the  indemnifying
         party, which consent such party shall not be required to give.

                  (iii)  Promptly  after  receipt  by the  indemnified  party of
         notice of the  commencement  of any  litigation or threat thereof which
         may reasonably  lead to a claim for  indemnification,  such party shall
         notify the indemnifying party.

         (f)      The parties agree to maintain appropriate amounts of product 
liability insurance coverage.

         Section 7.03 Dispute  Resolution.  In the event of any  controversy  or
claim arising out of or relating to any provision of this Agreement, the parties
shall  try  to  settle  their  differences  amicably  between  themselves.   Any
unresolved  disputes arising between the parties relating to, arising out of, or
in any way connected with this Agreement or any term or condition hereof, or the
performance  by either party of its  obligations  hereunder,  whether  before or
after  termination  of this  Agreement,  except as  otherwise  provided  in this
Agreement,  shall be finally resolved by binding  arbitration.  Whenever a party
shall decide to institute arbitration proceedings,  it shall give written notice
to that effect to the other party.  The party  giving such notice shall  refrain
from  instituting  the  arbitration  proceedings for a period of sixty (60) days
following such notice.  If Roche is the party  initiating the  arbitration,  the
arbitration  shall be held in San Diego,  California,  according to the rules of
the American Arbitration Association ("AAA"). If Agouron is the party initiating
the arbitration,  the arbitration shall be held in Newark, New Jersey, according
to the  rules  of the  AAA.  The  arbitration  shall  be  conducted  by a single
arbitrator  mutually chosen by the parties.  If the parties can not agree upon a
single  arbitrator  within  fifteen  (15)  days  after  the  institution  of the
arbitration  proceeding,  then the arbitration  shall be conducted by a panel of
three  arbitrators  appointed in accordance with AAA rules;  provided,  however,
that each party  shall,  within  thirty (30) days after the  institution  of the
arbitration proceedings,  appoint one arbitrator with the third arbitrator being
chosen by the other two  arbitrators.  If only one party appoints an arbitrator,
then such arbitrator  shall be entitled to act as the sole arbitrator to resolve
the  controversy.  Any  arbitration  hereunder shall be conducted in the English
language, to the maximum extent possible.  All arbitrator(s) eligible to conduct
the arbitration must agree to render their opinion(s) within thirty (30) days of
the final arbitration  hearing.  The  arbitrator(s)  shall have the authority to
grant  injunctive  relief and specific  performance and to allocate  between the
parties the costs of  arbitration  in such  equitable  manner as he  determines;
provided,  however,  that each party shall bear its own costs and attorneys' and
witness'  fees.  Notwithstanding  the terms of this Section  7.03, a party shall
also  have  the  right  to  obtain,  prior to the  arbitrator(s)  rendering  the
arbitration  decision,  provisional  remedies,  including  injunctive  relief or
specific   performance,   from  a  court  having   jurisdiction   thereof.   The

                                       42
<PAGE>

arbitrator(s)  shall, upon the request of either party,  issue a written opinion
of the findings of fact and  conclusions of law and shall deliver a copy to each
of the parties. Decisions of the arbitrator(s) shall be final and binding on all
of the  parties.  Judgment on the award so rendered  may be entered in any court
having jurisdiction thereof.

         Section 7.04 Governmental Approvals. Roche and Agouron shall obtain any
government approval(s) required to enable this Agreement to become effective, or
to enable any payment hereunder to be made, or any other obligation hereunder to
be  observed  or  performed.  Each party  shall keep the other  informed  of its
progress in obtaining any such government  approval and shall cooperate with the
other party in any such efforts.

         Section  7.05 Export  Controls.  The  parties  agree to comply with the
United  States laws and  regulations  governing  exports and  re-exports  of the
Compound,  intermediates  thereof,  Products,  Development  Program  Technology,
Agouron  Technology,  Roche  Technology,  or any other  technology  or  software
developed or disclosed as a result of this  Agreement.  The parties  acknowledge
that any performance  under this Agreement is subject to any restrictions  which
may be imposed by the United States laws and regulations  governing  exports and
re-exports.  Each party  agrees to provide the other  party with any  reasonable
assistance,  including  written  assurances which may be required by a competent
governmental  authority and by applicable laws and regulations as a precondition
for any  disclosure of technology or software by the other party under the terms
of  this  Agreement.   The  obligations  of  this  Section  7.05  shall  survive
termination or expiration of this Agreement.

                     ARTICLE VIII - DISCLOSURE OF AGREEMENT

         Section  8.01  Disclosure  of  Agreement.  Except  as  agreed to by the
parties,  neither  Agouron nor Roche shall release any  information to any third
party  with  respect  to any of the terms of this  Agreement  without  the prior
written consent of the other,  which consent will not  unreasonably be withheld.
This prohibition  includes,  but is not limited to, press releases,  educational
and  scientific  conferences,  promotional  materials and  discussions  with the
media. If a party  determines that it is required by law to release  information
to any third party  regarding the terms of this  Agreement,  it shall notify the
other party of this fact prior to releasing the  information.  The notice to the
other party shall include the text of the information  proposed for release. The
other party shall have the right to confer with the  notifying  party  regarding
the necessity for the  disclosure and the text of the  information  proposed for
release.  Notwithstanding  the preceding,  Roche and Agouron shall each have the
right to disclose  the terms of this  Agreement  to persons it proposes to enter
into business relationships with, if such persons are subject to confidentiality
and use  obligations  equivalent  to those  applicable to the  disclosing  party
hereunder.

                        ARTICLE IX - GENERAL PROVISIONS

         Section 9.01 No Implied Licenses. Only the licenses granted pursuant to
the express terms of this Agreement  shall be of any legal force and effect.  No
license rights shall be created by implication or estoppel.

                                       43
<PAGE>

         Section  9.02 No Waiver.  Any  failure by a party to enforce  any right
which it may have  hereunder  in any  instance  shall not be deemed to waive any
right which it or the other party may have in any other instance with respect to
any provision of this  Agreement,  including the provision  which such party has
failed to enforce.

         Section  9.03  Severability;  Government  Acts.  In the event  that any
provision of this  Agreement is judicially  determined to be  unenforceable,  in
part or in whole,  with regard to any or all of the countries in the  Territory,
the  remaining  provisions  or  portions  of this  Agreement  shall be valid and
binding to the  fullest  extent  possible,  and the  parties  shall  endeavor to
negotiate  additional  terms,  as  feasible,  in a timely  manner so as to fully
effectuate  the  original  intent of the  parties to the extent  possible in the
applicable countries.  In the event that any act, regulation,  directive, or law
of a  country,  including  its  departments,  agencies  or courts,  should  make
impossible or prohibit, restrain, modify or limit any material act or obligation
of a  party  under  this  Agreement  and,  if any  party  to this  Agreement  is
materially  adversely affected thereby,  the parties shall attempt in good faith
to  negotiate a lawful and  enforceable  modification  to this  Agreement  which
substantially  eliminates the material adverse effect;  provided,  that, failing
any  agreement in that regard,  the party who is materially  adversely  affected
shall have the right,  at its option,  to suspend or terminate this Agreement as
to such country.

         Section 9.04 Ambiguities.  Ambiguities, if any, in this Agreement shall
not be construed against any party, irrespective of which party may be deemed to
have authored the ambiguous provision.

         Section  9.05  Notification  of  Authorities.  After  execution of this
Agreement,  to the extent  required by law,  Agouron,  after  consultation  with
Roche, shall notify the appropriate United States authorities about the terms of
this  Agreement and Roche,  after  consultation  with Agouron,  shall notify the
appropriate  European and other  authorities  about the terms of this Agreement.
The parties  shall keep each other fully  advised of the status and  progress of
the notification procedures.

         Section  9.06 No  Agency.  Agouron  and Roche  shall have the status of
independent contractors under this Agreement and nothing in this Agreement shall
be  construed  as an  authorization  of  either  party to act as an agent of the
other.

         Section 9.07 Captions;  Number;  Official Language. The captions of the
Articles  and  Sections  of this  Agreement  are  for  general  information  and
reference  only, and this Agreement  shall not be construed by reference to such
captions.  Where applicable in this Agreement,  the singular includes the plural
and vice  versa.  To the extent  appropriate,  the  meaning of terms whose first
letters  are  capitalized,  but which are  variations  of terms that are defined
elsewhere  in this  Agreement,  shall each have the same  meaning as the defined
term (e.g.,  "Co-Promoting" and "Co-Promotional"  shall have the same meaning as
the defined term "Co-Promote," to the extent appropriate).  English shall be the
official  language of this  Agreement  and any license  agreement  provided  for
hereunder,  and all communications between the parties hereto shall be conducted
in that language.

         Section 9.08 Force  Majeure.  Neither party shall be responsible to the
other party for any failure,  delay or interruption in the performance of any of
its obligations  under this 

                                       44
<PAGE>

Agreement if such failure,  delay or  interruption  is caused by any act of God,
earthquake,  fire, casualty,  flood, war, epidemic, riot,  insurrection,  or any
act, exercise,  assertion or requirement of a governmental  authority,  or other
cause beyond the reasonable  control of the party affected if the party affected
shall  have used its best  efforts  to avoid such  occurrence.  If either  party
believes that the  performance  of any of its  obligations  under this Agreement
will be delayed or  interrupted as a result of any of the reasons stated in this
Section 9.08 and provided such party is able to do so, such party shall promptly
notify the other party of such delay or interruption and the cause therefor, and
shall provide such other party with its estimate of when the  performance of its
obligations will  recommence.  When the party affected is able to recommence the
performance  of  obligations  delayed or  interrupted  as a result of any of the
reasons  stated in this  Section  9.08,  it shall so notify the other party and,
except as otherwise  provided in this  Agreement,  it shall promptly  resume the
performance of such obligations.

         Section 9.09  Amendment.  This  Agreement,  including the  Attachments,
Exhibits,  Schedules  and  Appendices,  constitutes  the full  agreement  of the
parties with respect to the subject matter of this Agreement,  and  incorporates
any prior  discussions  between them with respect to such subject matter. In the
event of any inconsistency between this Agreement and the LOI, including Exhibit
A  thereto,  the  terms of this  Agreement  shall  govern  the  development  and
commercialization of Products. This Agreement, including the attachments hereto,
shall  not  be  amended,  supplemented  or  otherwise  modified,  except  by  an
instrument in writing signed by duly authorized officers of the parties.

         Section 9.10  Applicable Law. This Agreement shall be construed and the
rights of the parties shall be  determined  in  accordance  with the laws of the
United States and the State of California, without regard to its conflict of law
provisions.

         Section  9.11  Notices.  Any notice  required or  permitted to be given
under this Agreement shall be in writing and shall be given in person, delivered
by recognized overnight delivery service,  sent by mail (certified or registered
or air mail for addresses  outside of the  continental  U.S.), or by telefax (or
other similar means of electronic communication),  whose receipt is confirmed by
confirming  telefax,  and  addressed,  in the  case  of  Agouron,  to  the  Vice
President,  Commercial Affairs (with a copy to the Legal Department) and, in the
case of  Roche,  to the Head of the  Pharma  Division  (with a copy to the Legal
Department),  at the addresses shown at the beginning of this Agreement, or such
other  person  and/or  address  as may have been  furnished  in  writing  to the
notifying party in accordance  with the provisions of this Section 9.11.  Except
as otherwise  provided  herein,  any notice shall be deemed  delivered  upon the
earlier of: (i) actual  receipt;  (ii) two (2) business  days after  delivery to
such recognized  overnight delivery service;  (iii) five (5) business days after
deposit in the mail; or (iv) the date of receipt of the confirming telefax.

         Section 9.12  Assignment.  This  Agreement  shall not be  assignable by
either party,  except to an Affiliate,  without the prior written consent of the
other party,  which consent may be withheld at the sole  discretion of the other
party. Any such assignment  without the prior written consent of the other party
shall be void.  If this  Agreement is assigned to an  Affiliate,  the  assigning
party shall still be responsible  for all of the  obligations  specified in this
Agreement with respect to the assigning party. Notwithstanding the preceding, in
the event of: (i) a sale or transfer of all or  substantially  all of assignor's
assets;  or (ii) the merger or  consolidation  of 

                                       45
<PAGE>

assignor  with  another  company,  this  Agreement  shall be  assignable  to the
transferee or successor company.

         Section 9.13      Succession.  This Agreement shall be binding upon all
successors in interest,  assigns,  trustees and other legal representatives of 
the parties.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement, in
triplicate originals, by their respective officers thereunto duly authorized, as
of the day and year hereinabove written.

F. HOFFMANN-LA ROCHE LTD                    AGOURON PHARMACEUTICALS, INC.


By:      /s/ W. Henrich                     By:      /s/ Gary Friedman, Esq.
Name:    W. Henrich                         Name:    Gary Friedman, Esq.
Title:   Senior Vice President              Title:   V. P. & General Counsel

By:      /s/ J.T. Arnold                    By:      /s/ R. Kent Snyder
Name:    J.T. Arnold                        Name:    R. Kent Snyder
Title:   Authorized Signatory               Title:   V.P., Commercial Affairs


HOFFMANN-LA ROCHE INC.


By:      /s/ Stephen G. Sudouan
Name:    Stephen G. Sudouan
Title:   Sr. V.P., Pharmaceuticals

By:      /s/ William H. Epstein
Name:    William H. Epstein
Title:   Assistant Secretary


                                       46
<PAGE>

                                   SCHEDULE 1

                              AGOURON PATENT RIGHTS

*

                                      S1-1
<PAGE>

                                   SCHEDULE 2

                         AGOURON PATENT RIGHTS COMPOUNDS

The following is a partial list of chemical  compounds  included  within Agouron
Patent Rights:

                            AGOURON COMPOUND NUMBERS*

                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *
                                    *


*        Parenthetical numbers reference patent application numbers covering the
         compound.


                                      S2-1
<PAGE>

                                   SCHEDULE 3

                         SECTION 7.01(c) EXCLUSION LIST

*


1.       *



2.       *


3.       *



                                      S3-1
<PAGE>




                                    EXHIBIT 1

                INITIAL DEVELOPMENT PLAN FOR DEVELOPMENT PROGRAM


*



*




*



*





*





*





*



*

                                       E1-1
<PAGE>


                            SCHEDULE ONE TO EXHIBIT 1
                        AG3340 STRATEGIC DEVELOPMENT PLAN

*

                                    E1-S1-1
<PAGE>



                                    EXHIBIT 2

               INITIAL DEVELOPMENT BUDGET FOR DEVELOPMENT PROGRAM

*

                                      E2-1
<PAGE>


                                    EXHIBIT 2

               INITIAL DEVELOPMENT BUDGET FOR DEVELOPMENT PROGRAM

*

                                      E2-2
<PAGE>



                                  ATTACHMENT 1

                 DEVELOPMENT COSTS AND REIMBURSEMENT PROCEDURES

The purpose of this Attachment is to define  Development  Costs, and to describe
and define a methodology to fund and reimburse such Development Costs.

                                DEVELOPMENT COSTS

Development Costs means the costs of *
                                                                       
specifically  incurred to further the  Development  Program.  The calculation of
Development Costs shall take into consideration the following:

1.       The cost of development personnel charging the Development Program 
         shall be calculated using a *
                                                     Aggregate *               
         shall be calculated by applying an agreed to *

                            shall include the *
                                     Such  costs  would  include,   but  not  be
         limited to, the following:
         *

                                                                       
         does not include any of the direct charges included in Paragraph 2
         below.  *   charging
         the Development Program shall generally include staff from the 
         following disciplines:  *

                      Both parties shall utilize the same *       on a *
         The initial *
                   for the *
                             This *  shall be *
                                                                               
         Such adjusted rate may be compared to Agouron's anticipated *
         To the extent there are any significant  differences,  the parties
         shall discuss the need for any revisions to such rate.

2.       Third party costs shall  consist of  specifically  identifiable  
         contract  services or  materials  which are  necessary  to  supplement
         the  development capabilities  of either  Roche or Agouron,  or  
         otherwise  required in the  Development  Program.  Such costs shall  
         include,  but not be limited to, the following costs and services:  *



                                      A1-1
<PAGE>




                                                              All such third 
         party costs shall be charged to the  Development  Program when  
         incurred.  Patent and Trademark costs shall not be included in 
         Development Costs and shall be identified and billed separately.

                                  REIMBURSEMENT

Estimated Development Costs shall be *......                                    
and comply with the following terms and conditions:

1.       *                                                Agouron shall invoice 
         Roche for 80% of its estimated  Development  Costs for such quarter, 
         and Roche shall invoice Agouron for 20% of its estimated Development 
         Costs for such quarter.  Such estimated Development Costs *


                         as such  development  budget  is  revised  and  updated
         pursuant to the provisions of Section 4.02(f).  A party's share of 
         Development Costs in a *


2.       *
                  during which the parties have incurred Development Costs, each
         party  shall  furnish  and  deliver to the other  party a full and true
         accounting of its Development  Costs for such semi-annual  period.  The
         reporting party's  Development Costs for such semi-annual  period shall
         be  reviewed  and signed by an  appropriate  financial  employee of the
         reporting party.

3.       *








4.       If a party in good faith disputes the correctness of a portion of the 
         other party's accounting, the party *

                                                                     The parties
         agree to use their best faith efforts to resolve any disputes  
         concerning  the correctness of Development Costs as soon as possible.

                                       A1-2
<PAGE>

5.       Any  payments  due  pursuant to the terms of Section  5.02 that are not
         paid on or before the date such payments are due shall bear interest at
         the lower of: (i) the average one month London Interbank Offered Rates,
         as reported by Datastream from time to time, plus 100 basis points;  or
         (ii) the highest interest rate permitted by applicable law,  calculated
         on the number of days in each month that such payment is delinquent.

6.       Development  Costs invoices  shall be stated in United States  dollars.
         Payment of  Development  Costs shall be made in United States  dollars.
         Any Development  Costs which are incurred  outside of the United States
         shall be  converted  to United  States  dollars  using  the  procedures
         described in Section 5.05.

                                      A1-3
<PAGE>


                           SCHEDULE 1 TO ATTACHMENT 1

                                 AGOURON / ROCHE
                        DEVELOPMENT PROGRAM EXPENDITURES
                                        *

<TABLE>
<CAPTION>

INTERNAL STAFF COSTS:
                                                       Current Period              Cumulative
<S>                                                     <C>                      <C>    

*                                                         $ x.xx                  $ y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
                                                           -----                   -----

*                                                         xxx.xx                  yyy.yy

*                                                           x.xx

*                                                       $ xxx.xx                $ yyy.yy
                                                        --------                --------


OUTSIDE SERVICES:
                                                       Current Period              Cumulative

         *                                                $ x.xx                  $ y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
         *                                                  x.xx                    y.yy
                                                           -----                   -----

Total Outside Services $ xxx.xx                         $ yyy.yy
                       --------                         --------


TOTAL DEVELOPMENT COSTS                               $ x,xxx.xx              $ y,yyy.yy
                                                      ==========              ==========

<FN>
NOTE:         To the extent practicable, actual costs shall be presented in the same detail as that shown in the summary Development
              Program budget in Exhibit 2.
</FN>
</TABLE>
                                                                       A1-S1-1
<PAGE>


                           SCHEDULE 2 TO ATTACHMENT 1

                        AGOURON DEVELOPMENT COST INVOICE
                                 MONTH 1X, 199X


<TABLE>
<CAPTION>
*                                                  *                                              Total
<S>                                                <C>                                          <C>    
 
1.       *                                         $                                            $
                                                   ===========                                  =========

2.       *
                                                   $                                            $



*                                                  *                       *                      Total

3.       *                                         $                       $                    $
                                                   ===========             ==========           =========

4.       *                                         $                       $                    $
                                                   ===========             ==========           =========

5.       *                                         $                       $                    $
                                                   ===========             ==========           =========

6.       *
         *                                         $                       $                    $
                                                   ===========             ==========           =========



*                                                  $                       $                    $
                                                   ===========             ==========           =========


- -----------
1 *
2 *

</TABLE>
                                    A1-S2-1
<PAGE>



                           SCHEDULE 2 TO ATTACHMENT 1

                        AGOURON DEVELOPMENT COST INVOICE
                                        *


<TABLE>
<CAPTION>
*                                                  *                                              Total
<S>                                                <C>                                          <C>    
 
1.       *                                         $                                            $
                                                   ===========                                  =========

2.       *
                                                   $                                            $



*                                                  *                       *                      Total

3.       *                                         $                       $                    $
                                                   ===========             ==========           =========

4.       *                                         $                       $                    $
                                                   ===========             ==========           =========

5.       *                                         $                       $                    $
                                                   ===========             ==========           =========

6.       *
         *                                         $                       $                    $
                                                   ===========             ==========           =========



*                                                  $                       $                    $
                                                   ===========             ==========           =========


- -----------
1 *
2 *
</TABLE>
                                    A1-S2-2
<PAGE>



                                  ATTACHMENT 2

                          ACCOUNTING TERMS/DEFINITIONS

All of the accounting  terms used in this Attachment 2, if identified by the use
of capitalization of the first letter of each word, shall have the same meanings
described in the Definitions Section below.

                 ACCOUNTING TERMS AND PROFIT SHARING METHODOLOGY

Profits and Losses  earned or incurred  during the fiscal year of the  Marketing
Company from the sales of Products  arising out of the  Development  Program for
cancer  indications in countries located in the North American  Territory and/or
the  European  Co-Promotion  Countries  shall be  shared by the  parties  if the
parties  are  Co-Promoting  Products  in such  countries.  The  purpose  of this
Attachment  2 is to describe and define the  methodologies  used to achieve such
sharing of Profits and Losses.

The Marketing Company shall be responsible for the *








Profits and Losses resulting from North American  Territory sales and from sales
in the European  Co-Promotion  Countries  shall be  calculated  in United States
dollars.  Payment  of  Profits  generated  by  the  Co-Promotion  of a  Product,
Allowable  Expenses  and  remittance  of Losses  shall be made in United  States
dollars.  The conversion of non-United States dollar currencies to United States
dollars shall be made in  accordance  with the  procedures  set forth in Section
5.05.

The Global Joint Finance  Committee (or a local project team  established by the
Global Joint Finance Committee) shall, for each Co-Promotion Country, *



Allowable Expenses will be charged to the Product *



                                      A2-1
<PAGE>

                                   DEFINITIONS

1.       "Adjusted Gross Sales" shall have the meaning set forth in Section 
         1.22.

2.       "Allowable Expenses" shall include the following internal and external 
         expenses incurred in the commercialization of Products: *







3.       "Cost of Goods Sold" shall mean the *

















4.       "Distribution Expenses," with the exception of *












                                      A2-2
<PAGE>

5.       "General and Administrative Expenses," *


















6.       "Marketing, Advertising and Education Expenses" shall mean the *












         (a)      *










                                      A2-3
<PAGE>

         (b)      *















         (c)      *






7.       "Premarketing Expenses" shall mean those *






8.       "Profits and Losses" *





         (a)      *


         (b)      *


9.       "Selling and Promotion Expenses" shall mean the *



                                      A2-4
<PAGE>



         (a)      *


























         (b)      *









10.      *






                                      A2-5
<PAGE>

                                  ATTACHMENT 3

                      PRODUCT MANUFACTURING SPECIFICATIONS



      THE TERMS OF THE PRODUCT MANUFACTURING SPECIFICATIONS WILL BE AGREED
                 UPON BY THE PARTIES PRIOR TO COMMERCIALIZATION



                                      A3-1
<PAGE>

                                  ATTACHMENT 4

                           TRADEMARK LICENSE AGREEMENT

This  Trademark  License,  effective  as of June 19,  1996,  is between  Agouron
Pharmaceuticals,  Inc., a corporation duly organized and existing under the laws
of the state of California,  having a principal place of business at 10350 North
Torrey Pines Road, La Jolla,  California,  United States of America (hereinafter
referred to as "Agouron,"  the first  party),  and F.  Hoffmann-La  Roche Ltd, a
corporation duly organized and existing under the laws of Switzerland,  having a
principal place of business at CH-4002-Basel, Switzerland, and Hoffmann-La Roche
Inc., a corporation  duly  organized and existing under the laws of the state of
New Jersey,  having a  principal  place of  business  at 340  Kingsland  Street,
Nutley, New Jersey, United States of America (hereinafter  collectively referred
to as "Roche," the second  party).  Agouron and Roche are sometimes  hereinafter
each referred to as a party (collectively "parties") to this Trademark License.

(Terms containing an initial capitalized letter,  except as explicitly otherwise
indicated,  shall  have the  meanings  stated in the D&L  Agreement,  as defined
below.)

                                   BACKGROUND

Agouron and Roche entered into an AG3340 Development and License Agreement dated
June 19,  1996.  The AG3340  Development  and  License  Agreement,  as now or as
subsequently amended, is hereinafter referred to as the "D&L Agreement."

The parties  have  conducted  collaborative  development  and  commercialization
activities for the cancer inhibitor known as "AG3340"

         *


pursuant to the terms of the D&L Agreement.

The D&L Agreement provides that a form trademark license shall be agreed upon by
the parties and attached to the D&L Agreement as Attachment 4. The D&L Agreement
also contains the following  provisions  concerning ownership and utilization of
Trademarks:

                  Section 1.34  "Trademark(s)"Section1.34Trademark(s)""2"  means
         any trademark  selected and owned by a party and registered (or applied
         for)  by  such  party,  its  Affiliate(s)  and  sublicensee(s)  in  the
         Territory  for use in connection  with the  marketing of Products.  The
         definition  of  Trademark(s)  shall not refer to trade  names used by a
         party to designate the name of such party.

                                      A4-1
<PAGE>

                  Section 2.01      License Grants. . . .

                                      * * *

                  (k)     *

















                  Section 3.03      Trademarks.  *



















                                      A4-2
<PAGE>








         Section 4.03     Marketing. . . .

                                      * * *

         (g)     It is the intent of the parties that *
                                                                                
arising  out of the  Development  Program  for cancer  indications
         wherever possible throughout the Territory.  The parties acknowledge *
                                                                                
arising out of the  Development  Program  for cancer  indications
         wherever possible.

One or both of the parties is the  owner(s)  of the  ___________  Trademark,  in
certain countries of the Territory.

The parties intend to use the _____________ Trademark,  including its associated
non-English translations (hereinafter collectively referred to as the "_________
Trademark"),  only in  connection  with  the  marketing  of  AG3340  for  cancer
indications.

NOW THEREFORE, in accordance with the provisions of the D&L Agreement,  for good
and valuable consideration, the parties agree as follows:

                                TRADEMARK LICENSE

          1. Under the provisions of the D&L Agreement, as more specifically set
         forth above,  each party granted to the other party, its Affiliates and
         sublicensees  a  non-exclusive   right  to  use  the  granting  party's
         Trademark(s)  in the Territory in the marketing of the Compound  and/or
         Products arising out of the Development Program.

2.       Products marketed using the ________  Trademark shall be manufactured 
         strictly in accordance with applicable  governmental  statutes,  
         regulations or directives.

3.       The licensed user of the ________ Trademark shall comply with all 
         applicable governmental statutes, regulations or directives.

4.       The licensed user of the ________  Trademark shall not use the ________
         Trademark  in a manner  which is  deceptive,  or which  would bring the
         ________  Trademark,  the Product or the other party,  into  disrepute.
         Each party shall use the ________  Trademark,  

                                      A4-3
<PAGE>

         including its associated non-English translations, *




5.       Pursuant to the terms of the D&L  Agreement,  Agouron and Roche shall 
         share  obligations  and  responsibilities  related to  Trademark(s).  
         Provided a party fulfills its obligations and responsibilities related
         to Trademark(s), and subject to the terms of the D&L Agreement, *



6.       Each party shall,  upon  learning  thereof,  promptly  notify the other
         party in writing of any  infringement  by a third party of the parties'
         rights in the  ________  Trademark,  or of any claim or suit by a third
         party that the use of the  ________  Trademark  infringes  or otherwise
         violates the rights of a third party.  The parties  shall  cooperate in
         taking  commercially  reasonable  legal actions to protect the parties'
         rights in the ________  Trademark  and/or to contest a claim by a third
         party that the use of the  ________  Trademark  infringes  or otherwise
         violates any rights of a third party. *





7.       Only  the  licenses  granted  pursuant  to the  express  terms  of this
         Trademark License and the D&L Agreement shall be of any legal force and
         effect. No license rights shall be created by implication or estoppel.

8.       This Trademark License shall terminate in accordance with the 
         provisions of the D&L Agreement.

9.       Any  failure  by either  party to enforce  any right  which it may have
         hereunder in any instance  shall not be deemed to waive any right which
         it or the other party may have in any other  instance  with  respect to
         any provisions of this Trademark License, including the provision which
         such party has failed to enforce.

10.      In the event that any provision of this Trademark License is judicially
         determined  to be  unenforceable,  in whole or in part,  the  remaining
         provisions  or  portions  thereof  shall be valid  and  binding  to the
         fullest  extent  possible,  and the parties shall endeavor to negotiate
         additional  terms,  as  feasible,  in a  timely  manner  so as to fully
         effectuate the original intent of the parties,  to the extent possible.
         Ambiguities,  if any, in this Trademark  License shall not be construed
         against  any party,  irrespective  of which party may be deemed to have
         authored the ambiguous provision.

                                      A4-4
<PAGE>

11.      This  Trademark  License  and the D&L  Agreement  constitute  the  full
         agreement  of the parties  with  respect to the subject  matter of this
         Trademark License,  and incorporate any prior discussions  between them
         with respect to such subject matter.  This Trademark  License shall not
         be amended, supplemented or otherwise modified, except by an instrument
         in writing signed by a duly authorized officer of each party.

12.      If there is a conflict between the terms of this Trademark License and 
         the D&L Agreement, the terms of the D&L Agreement shall control.

13.      This  Trademark  License  shall be  construed,  and the  rights  of the
         parties shall be determined,  in accordance  with the laws of the state
         of California and the United States,  without regard to conflict of law
         provisions.

14.      Any notice  required or permitted to be given under this Trademark  
         License shall be in writing and shall be given in person,  delivered by
         recognized express delivery service,  sent by mail (certified or 
         registered,  or air mail for addresses outside of the continental 
         U.S.), or by telefax (or other similar means of electronic  
         communication)  whose receipt is confirmed by confirming  telefax,  and
         addressed,  in the case of Agouron,  to the Vice President,  Commercial
         Affairs (with a copy to the Legal  Department)  and, in the case of 
         Roche,  to the Head of the Pharma Division (with a copy to the Legal  
         Department) at the respective  addresses shown at the beginning of the 
         D&L Agreement,  or such other person and/or address as may have been
         furnished in writing to the notifying party in accordance  with the 
         provisions of this  paragraph.  Except as otherwise  provided  herein, 
         any notice shall be deemed  delivered  upon the earlier of:  (i) actual
         receipt;  (ii) two (2) business  days after  delivery to a recognized  
         express  delivery service; (iii) five (5) business days after deposit 
         in the mail; or (iv) the date of receipt of the confirming telefax.

15.      This Trademark License shall be binding upon all successors in 
         interest, assigns, trustees and other legal representatives of the 
         parties.

                                      A4-5
<PAGE>

IN WITNESS WHEREOF,  the parties hereto have executed this Trademark License, in
triplicate originals,  by their respective officers thereunto duly authorized as
of the day and year hereinabove written.

F. HOFFMANN-LA ROCHE LTD                 AGOURON PHARMACEUTICALS, INC.


By:                                      By:
Name:                                    Name:
Title:                                   Title:

By:                                      By:
Name:                                    Name:
Title:                                   Title:


HOFFMANN-LA ROCHE INC.


By:
Name:
Title:

By:
Name:
Title:


                                      A4-6



                                                                   EXHIBIT 10.38

  PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED (DESIGNATED BY AN ASTERIX (*) AND
       WHITE SPACE) AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
        COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT DATED
                        AUGUST 21, 1997; FILE NO. 0-15609



                                    THYMITAQ

                        DEVELOPMENT AND LICENSE AGREEMENT

                                     BETWEEN

               F. HOFFMANN-LA ROCHE LTD AND HOFFMANN-LA ROCHE INC.

                                       AND

                          AGOURON PHARMACEUTICALS, INC.






                                  June 11, 1997


<PAGE>
<TABLE>
<CAPTION>

                                                     TABLE OF CONTENTS

                                                                                                           Page No.

<S>                   <C>
BACKGROUND            .........................................................................................1

ARTICLE I             DEFINITIONS..............................................................................1

Section 1.01          Affiliate................................................................................1
Section 1.02          Agouron Patent Rights....................................................................2
Section 1.03          Agouron Technology.......................................................................2
Section 1.04          Allowable Expenses.......................................................................2
Section 1.05          Combination Product......................................................................2
Section 1.06          Compound.................................................................................2
Section 1.07          Co-Promote...............................................................................3
Section 1.08          Control, Controlled or Controlling.......................................................3
Section 1.09          Development Costs........................................................................3
Section 1.10          Development Program......................................................................3
Section 1.11          Development Program Patent Rights........................................................4
Section 1.12          Development Program Technology...........................................................4
Section 1.13          Dossier..................................................................................4
Section 1.14          Effective Date...........................................................................4
Section 1.15          European Co-Promotion Countries..........................................................4
Section 1.16          Global Joint Development Committee.......................................................4
Section 1.17          Global Joint Finance Committee...........................................................5
Section 1.18          Global Joint Marketing Committee.........................................................5
Section 1.19          Initial Commercial Sale..................................................................5
Section 1.20          Marketing Company........................................................................5
Section 1.21          Net Sales................................................................................5
                      (a)    Adjusted Gross Sales..............................................................5
                      (b)    Net Sales.........................................................................5
Section 1.22          North American Territory.................................................................5
Section 1.23          Patent Rights............................................................................5
Section 1.24          Product..................................................................................6
Section 1.25          Profits and Losses.......................................................................6
Section 1.26          Registration.............................................................................6
Section 1.27          Roche Technology.........................................................................6
Section 1.28          Roche Territory..........................................................................6
Section 1.29          Territory................................................................................6
Section 1.30          Trade Dress..............................................................................6
Section 1.31          Trademark(s).............................................................................6
Section 1.32          United States............................................................................6


                                                                       i
<PAGE>


                                                     TABLE OF CONTENTS
                                                        (Continued)
                                                                                                           Page No.

<S>                   <C> 

ARTICLE II            COMMERCIAL RIGHTS........................................................................6

Section 2.01          License Grants...........................................................................6
Section 2.02          Non-Cancer Indications of the Compound..................................................10
Section 2.03          Diligent Efforts to Develop and Market..................................................10
Section 2.04          Discontinuance of the Development Program...............................................11

ARTICLE III           SHARING AND PROTECTION OF INTELLECTUAL PROPERTY.........................................12

Section 3.01          Patents.................................................................................12
Section 3.02          Infringement of Patents of Third Parties................................................13
Section 3.03          Trademarks..............................................................................14
Section 3.04          Information Exchange....................................................................15
Section 3.05          Confidentiality.........................................................................15
Section 3.06          Publication.............................................................................16

ARTICLE IV            MANAGEMENT STRUCTURE OF COLLABORATION...................................................17

Section 4.01          Management Committees...................................................................17
Section 4.02          Development and Registration............................................................17
Section 4.03          Marketing...............................................................................21
Section 4.04          Supply of Compound and Product..........................................................26

ARTICLE V             LICENSE FEES, PROFIT AND LOSS SHARING AND ROYALTIES;
                      DEVELOPMENT COSTS; PREMARKETING EXPENSES;
                      GENERAL LICENSING TERMS.................................................................28

Section 5.01          License Fees, Profit and Loss Sharing and Royalties.....................................28
Section 5.02          Development Costs.......................................................................29
Section 5.03          Premarketing Expenses...................................................................30
Section 5.04          General Licensing Terms.................................................................31
Section 5.05          Foreign Currency........................................................................37

ARTICLE VI            TERM AND TERMINATION....................................................................38

Section 6.01          Termination for Breach..................................................................38
Section 6.02          Termination by Roche....................................................................39
Section 6.03          Termination by Mutual Agreement.........................................................40
Section 6.04          Termination Upon Bankruptcy.............................................................40
Section 6.05          Disposition of Inventory................................................................40
Section 6.06          Effect of Termination...................................................................40


                                                                       ii
<PAGE>

                                                     TABLE OF CONTENTS
                                                        (Continued)
                                                                                                           Page No.

<S>                   <C> 

ARTICLE VII           WARRANTIES, COVENANTS; INDEMNITIES; INSURANCE;
                      DISPUTE RESOLUTION; GOVERNMENTAL APPROVALS;
                      EXPORT CONTROLS.........................................................................41

Section 7.01          Warranties and Covenants................................................................41
Section 7.02          Indemnities; Insurance..................................................................41
Section 7.03          Dispute Resolution......................................................................43
Section 7.04          Governmental Approvals..................................................................44
Section 7.05          Export Controls.........................................................................44

ARTICLE VIII          DISCLOSURE OF AGREEMENT.................................................................44

Section 8.01          Disclosure of Agreement.................................................................44

ARTICLE IX            GENERAL PROVISIONS......................................................................44

Section 9.01          No Implied Licenses.....................................................................44
Section 9.02          No Waiver...............................................................................44
Section 9.03          Severability; Government Acts...........................................................45
Section 9.04          Ambiguities.............................................................................45
Section 9.05          Notification of Authorities.............................................................45
Section 9.06          No Agency...............................................................................45
Section 9.07          Captions; Number; Official Language.....................................................45
Section 9.08          Force Majeure...........................................................................45
Section 9.09          Amendment...............................................................................46
Section 9.10          Applicable Law..........................................................................46
Section 9.11          Notices.................................................................................46
Section 9.12          Assignment..............................................................................46
Section 9.13          Succession..............................................................................47

                                                    APPENDICES

Schedule 1              Agouron Patent Rights..................................................................S1-1
Exhibit 1               Initial Development Plan for THYMITAQ Development Program..............................E1-1
                        Schedule 1      THYMITAQ Development Timeline - IV/PO...............................E1-S1-1
Exhibit 2               Initial Development Budget for THYMITAQ Development Program............................E2-1
Attachment 1            Development Costs and Reimbursement Procedures.........................................A1-1
                        Schedule 1      Agouron/Roche Development Program Expenditures......................A1-S1-1
                        Schedule 2      Agouron Development Cost Invoice ...................................A1-S2-1
                        Schedule 3      Roche Development Cost Invoice......................................A1-S3-1
Attachment 2            Accounting Terms/Definitions...........................................................A2-1
Attachment 3            Product Manufacturing Specifications...................................................A3-1
Attachment 4            Trademark License Agreement............................................................A4-1

                                                                       iii
</TABLE>
<PAGE>


         This  THYMITAQ(TM)1  Development and License  Agreement  ("Agreement"),
dated for reference  purposes only this 11th day of June 1997, is by and between
Agouron  Pharmaceuticals,  Inc., a corporation duly organized and existing under
the laws of the state of  California,  having a  principal  place of business at
10350 North Torrey Pines Road,  La Jolla,  California,  United States of America
(hereinafter  referred to as  "Agouron,"  the first party),  and F.  Hoffmann-La
Roche  Ltd,  a  corporation  duly  organized  and  existing  under  the  laws of
Switzerland, having a principal place of business at CH-4002-Basel, Switzerland,
and Hoffmann-La  Roche Inc., a corporation duly organized and existing under the
laws of the state of New  Jersey,  having a  principal  place of business at 340
Kingsland  Street,  Nutley,  New Jersey,  United States of America  (hereinafter
collectively  referred to as "Roche," the second  party).  Agouron and Roche are
sometimes  hereinafter each referred to as a party  (collectively  "parties") to
this Agreement.

                                   BACKGROUND

         On June 19,  1996,  Agouron and Roche  entered  into a Letter of Intent
("LOI")  to  confirm  the  parties   formation  of  a  collaboration   on  terms
substantially  in  accordance  with  those  contained  in  Exhibit  A to the LOI
("Exhibit A"). A component of such  collaboration  includes the  development and
commercialization  of the chemical compound known as "AG337" (sometimes referred
to herein as "THYMITAQ"), which was invented by Agouron employees. While Exhibit
A states the basic terms of the understanding  between the parties,  the parties
agreed  that  the  terms  of the  collaboration  would  be  subject  to  further
negotiation and preparation of further  agreements  containing the full terms of
the  collaboration  between the parties.  This Agreement is entered into for the
purpose of setting  forth the  definitive  terms under  which the parties  shall
collaborate in the development and commercialization of THYMITAQ products.

         NOW,  THEREFORE,  in  consideration  of the  premises,  and the  mutual
covenants,  benefits and  obligations  set forth  herein,  the parties  agree as
follows:

                             ARTICLE I - DEFINITIONS

         When used in this Agreement, each of the following terms shall have the
meaning set out in this  Article I. All  references  to  Articles,  Attachments,
Sections,   Schedules,  Exhibits  and  Appendices  shall,  except  as  otherwise
explicitly provided, refer to the Articles,  Attachments,  Sections,  Schedules,
Exhibits and Appendices of this Agreement,  all of which are incorporated herein
by reference.

         Section 1.01 "Affiliate" means any person, organization or entity which
is, directly or indirectly,  controlling, controlled by, or under common control
with Roche or Agouron, as the

- ----------
1 THYMITAQ is a trademark of Agouron  Pharmaceuticals,  Inc. and is  registered 
  in the United States and in certain other countries.
 
                                      1
<PAGE>
case may be. The term "control" (including,  with correlative meaning, the terms
"controlled  by" and "under common control  with"),  as used with respect to any
person or entity, means the possession,  directly or indirectly, of the power to
direct,  or cause the direction of, the  management and policies of such person,
organization or entity,  whether through the ownership of voting securities,  or
by contract or court order or otherwise. The ownership of voting securities of a
person, organization or entity shall not, in and of itself, constitute "control"
for purposes of this  definition,  unless said ownership is of a majority of the
outstanding  securities  entitled  to  vote of such a  person,  organization  or
entity. For purposes of this Agreement,  Genentech,  Inc. shall be considered to
be an Affiliate of Roche.

         Section 1.02      "Agouron Patent Rights" means:  *








         Section 1.03      "Agouron Technology" means *






         Section 1.04      "Allowable  Expenses"  has the  meaning  described  
in  Section  5.02 and  Schedule 1 to Attachment 2.

         Section 1.05      "Combination Product" means any *



         Section 1.06      "Compound"  means the  chemical  compound  known as  
AG337,  whose  chemical  name is as  follows:

         *







                                       2
<PAGE>











         Section 1.07      "Co-Promote" means the right of a party, subject to 
applicable law, to *







                                             Countries  where the parties are  
Co-Promoting  Products are sometimes referred to herein as "Co-Promotional 
countries."

         Section 1.08      "Control," "Controlled" or "Controlling" means *



         Section  1.09   "Development   Costs"  has  the  meaning  described  in
Attachment 1.

         Section 1.10      "Development Program" means all *













                                       3
<PAGE>



         Section 1.11      "Development Program Patent Rights" means *
















         Section 1.12      "Development Program Technology" means any *










         Section  1.13  "Dossier"  means the  document  which is filed  with and
approved by a government or health authority for purposes of  Registration,  for
example, a New Drug Application or a Marketing Authorization Application.

         Section 1.14 "Effective Date" means June 19, 1996.

         Section 1.15      "European Co-Promotion Countries" means *



         Section 1.16 "Global Joint  Development  Committee" has the meaning set
forth in Section 4.01.

                                       4
<PAGE>

         Section 1.17 "Global Joint Finance Committee" has the meaning set forth
in Section 4.01.

         Section 1.18 "Global  Joint  Marketing  Committee"  has the meaning set
forth in Section 4.01.

         Section 1.19 "Initial Commercial Sale " means the first commercial sale
of a Product arising out of the Development Program *



         Section 1.20      "Marketing  Company"  means the  company  marketing  
a Product in a  country;  provided, however, that if the *





         Section  1.21 "Net Sales" and the related term  "Adjusted  Gross Sales"
shall have the following meanings:

         (a)      "Adjusted Gross Sales" means the *








         (b)      "Net Sales" means the amount calculated by subtracting from 
the amount of Adjusted Gross Sales *





         Section  1.22 "North  American  Territory"  means the United  States of
America, Canada and Mexico.

         Section 1.23      "Patent Rights" means, collectively, *

                                       5
<PAGE>

         Section 1.24      "Product" means any *



         Section 1.25      "Profits and Losses" have the meanings set forth in 
Schedule 1 to Attachment 2.
         
         Section  1.26  "Registration"   means  the  official  approval  by  the
government or health  authority in a country (or  supra-national  organizations,
such as the European  Agency for the  Evaluation of Medical  Products)  which is
required for a Product to be offered for sale in such  country,  including  such
authorizations  as may be required  for the  production,  importation,  pricing,
reimbursement and sale of such Product,  and for subsequent  regulatory  filings
for line extensions and/or additional indications of such Product.

         Section 1.27      "Roche Technology" means any *







         Section 1.28      "Roche Territory" means *


         Section 1.29      "Territory" means *

         Section  1.30  "Trade  Dress"  means  any  materials   supporting   the
commercialization  of a  Product,  including,  but not  limited  to,  packaging,
package inserts,  advertising or selling aids, brochures,  mailings and/or other
marketing or packaging materials.  The definition of Trade Dress shall not refer
to trade names used by a party to designate the name of such party.

         Section 1.31 "Trademark(s)" means any trademark selected and owned by a
party and  registered  (or applied  for) by such  party,  its  Affiliate(s)  and
sublicensee(s)  in the  Territory  for use in  connection  with the marketing of
Products.  The definition of Trademark(s) shall not refer to trade names used by
a party to designate the name of such party.

         Section 1.32 "United  States" means the United  States of America,  its
territories,  possessions and  protectorates  (including  Puerto Rico),  and the
District of Columbia.

                         ARTICLE II - COMMERCIAL RIGHTS

         Section 2.01 License Grants. To implement the  commercialization of the
Compound and/or Products  arising out of the Development  Program,  the parties,
subject to the other 

                                       6
<PAGE>

applicable obligations of this Agreement,  grant and accept the license rights
provided below in this Article II.

         (a)      *






         (b)      *






         (c)      *







         (d)      In accordance  with the provisions of Section 4.03, the 
parties agree,  unless  prohibited by law or regulation, to *




         (e)      *














                                       7
<PAGE>


















                  (i)      *



                  (ii)     *






         (f)      *




*        (g)



         (h)      *


                                       8
<PAGE>




*        (i)












         (j)  Notwithstanding   anything  to  the  contrary  contained  in  this
Agreement,  each party agrees to sell the Compound and/or Products for non-human
pharmaceutical uses only with the written agreement of the other party.

         (k)      *
















         (l)      *





                                       9
<PAGE>






         (m)      *















         Section 2.02      Non-Cancer Indications of the Compound.

         (a) Except as provided in Section 2.02(b) and Section 4.02(o), Agouron,
in  its  sole   discretion,   shall  be  entitled  to  make,  use,  develop  and
commercialize the Compound for non-cancer indications.

         (b)      *








         Section 2.03 Diligent Efforts to Develop and Market. The right of Roche
to market Products for cancer indications in all countries  comprising the Roche
Territory  shall be subject to diligent  development  and  marketing  efforts by
Roche,  on a  country-by-country  basis.  For  purposes  of this  Section  2.03,
commercialization   efforts   undertaken  by  Roche's   Affiliates  and 
sublicensees shall be attributed to Roche. Roche shall begin commercial sales of
at least one (1)

                                       10
<PAGE>

Product arising out of the Development  Program for cancer  indications in a
country no later than one (1) year after the first  Registration of such Product
for cancer  indications  in such country;  provided,  however,  that such period
shall be extended  for as long as  diligent  efforts to begin  commercial  sales
continue.  Following  commencement of commercial sales in a country, Roche shall
keep such Product  reasonably  available  to the public for cancer  indications;
provided,  however,  that Roche shall be released from this obligation if supply
of the Product for cancer  indications  is not  available  for such  country and
Roche is not responsible for arranging for the commercial  production and supply
of such Product for such country. Roche agrees to use diligent efforts to market
which are  comparable to the efforts it then uses with its own cancer  products.
If,  after one hundred  twenty (120) days  written  notice of a failure:  (i) to
begin commercial  sales of at least one (1) such Product for cancer  indications
in a country in a timely manner;  or (ii) following  commencement  of commercial
sales in a country, to keep such Product reasonably  available to the public for
cancer  indications,  Roche fails to fulfill its  obligation  under this Section
2.03,  Agouron shall have the right,  as the sole and exclusive  remedy for such
failure,  to elect to have the licenses  granted to Roche in such country  under
the terms of  Section  2.01(a)  converted  to a  non-exclusive  license  to both
parties. Both parties,  under such non-exclusive  license,  shall have the right
(with right of sublicense)  to  manufacture,  use,  offer for sale,  sell and/or
import in or into  such  country  such  Product  for  cancer  indications  under
applicable  Agouron Patent Rights and  Development  Program  Patent Rights,  and
using applicable Agouron  Technology,  Roche Technology and Development  Program
Technology.  Agouron,  its Affiliates and sublicensees  shall have no royalty or
other obligations to Roche resulting from the manufacture,  use, offer for sale,
sale  and/or  import in or into such  country of such  Product by  Agouron,  its
Affiliates and sublicensees. No additional consideration shall be due because of
the exercise by Agouron of such election.

         Section 2.04      Discontinuance of the Development Program.  *

















                                       11
<PAGE>





          ARTICLE III - SHARING AND PROTECTION OF INTELLECTUAL PROPERTY

         Section 3.01      Patents.

         (a)      *













         (b)      *







         (c)      *








         (d)      *


                                       12
<PAGE>

         (e)      *









         (f)      *

















         Section 3.02 Infringement of Patents of Third Parties.  Each party, its
Affiliates and sublicensees, and their respective employees and agents shall use
diligent  efforts  to  avoid  infringement  of  patents  of any  third  party in
discovering,   developing,   manufacturing  and  commercializing  the  Compound,
intermediates  thereof and/or Products.  However,  neither party, its Affiliates
and sublicensees,  and their respective  employees and agents shall be liable to
the other party, its Affiliates and sublicensees, and their respective employees
and agents if the  practice  of the Patent  Rights,  Agouron  Technology,  Roche
Technology,  and/or Development  Program Technology in discovering,  developing,
manufacturing  or  commercializing  the Compound,  intermediates  thereof and/or
Products  infringe any patent of any third party.  If either party becomes aware
of any claim or suit by any third  party  for  infringement  of a patent of such
third party in connection with the discovery,  development,  manufacture, use or
sale of the Compound,  intermediates  thereof and/or Products by a party hereto,
such party shall  notify the other party in writing of such claim or suit within
thirty  (30) days  thereafter.  Each  party  agrees to  render  such  reasonable
assistance  as the other party may request in defending  any such claim or suit.
The parties shall  mutually agree to any settlement of any existing or potential

                                       13
<PAGE>

infringement  claim or action  that would  require the payment of any royalty or
lump sum payment to a third party,  except that if the parties  cannot  promptly
reach  agreement,  they shall appoint an  independent  patent counsel to give an
opinion,  which  shall be  binding  on the  parties,  as to  whether  there is a
substantial risk that the third party patent is both valid and infringed. If the
opinion  is that there is a  substantial  risk that the patent is both valid and
infringed,  the marketing  party of a Product in a country,  after  consultation
with the other party, may settle the matter in its sole discretion on such terms
as it deems appropriate. If both parties are participating in the marketing of a
Product in a country,  the parties shall mutually agree to any settlement of any
infringement  claim or action  that would  require the payment of any royalty or
lump sum payment to a third party;  if the parties are unable to mutually  agree
on the  settlement,  then the issue shall be decided by binding  arbitration  in
accordance with the provisions of Section 7.03 hereof.  Unless the parties agree
otherwise,  the costs of  defending  or  settling  any such claim or action in a
country where the parties are sharing  Profits and Losses from the sales of such
Product shall be a deductible  expense when  calculating  Profits and Losses for
such Product for such country. *









         Section 3.03      Trademarks.  *



















                                       14
<PAGE>









         Section 3.04      Information Exchange.

         (a)      *











         (b)      *







         Section 3.05  Confidentiality.  Except as otherwise expressly specified
in this  Agreement  and except for the proper  exercise  of any  license  rights
granted or rights reserved under this Agreement, Roche and Agouron shall keep in
confidence  and  shall  each  use its  best  efforts  to  cause  its  respective
Affiliates,   employees,  directors,  agents,  consultants,   clinical  research
associates, outside contractors, clinical investigators and sublicensees to whom
it is permitted to disclose  information pursuant to the terms of this Agreement
to retain in confidence: (i) all confidential and proprietary information of the
other party, *
                                                     and/or the  marketing  and 
business  plans of such other party that is disclosed to it hereunder;  and (ii)
Development  Program  Technology.  Without  limiting  the  foregoing,  Roche and
Agouron  shall each  exercise the same degree of diligence and care with respect
to the  above-described  information  as it exercises  with respect to its other
proprietary  information.  Each  party  represents  to the other  party  that it
maintains   policies  and  procedures   designed  to  prevent  the  unauthorized
disclosure  of  its  proprietary   data  and   

                                       15
<PAGE>

information.  Agouron  shall be  responsible,  under the direction of the Global
Joint Development  Committee,  for authorizing the supply of any drug samples of
the Compound and/or Products to third party researchers. Roche and Agouron shall
each be entitled to disclose the  above-described  information  to  consultants,
clinical  research  associates,  outside  contractors,  collaborators,  clinical
investigators  and other third parties who are engaged,  in accordance  with the
procedures   established   under  Section  4.02(h),   and  who  are  subject  to
confidentiality  and use  obligations  equivalent  to  those  applicable  to the
disclosing  party  hereunder,  and to  governmental or other  regulatory  and/or
health authorities,  to the extent that such disclosure is reasonably  necessary
to obtain patents, to obtain  authorization or to conduct clinical trials on the
Compound or  Products,  to prepare the Dossier  and/or  otherwise to fulfill its
obligations  pursuant to this  Agreement.  Roche and Agouron shall also have the
right to disclose Development Program Technology to persons it proposes to enter
into business relationships with, if such persons are subject to confidentiality
obligations  equivalent to those  applicable to the disclosing  party hereunder.
The preceding  obligations of confidentiality  shall be waived as to information
which the party claiming waiver can demonstrate,  based on written records:  (i)
is in the public domain at the time of disclosure hereunder; (ii) comes into the
public domain through no fault of the party claiming waiver;  (iii) was known to
the party claiming waiver prior to its disclosure  under this Agreement,  unless
such information was obtained from the other party on a confidential basis; (iv)
is disclosed on a non-confidential basis to the party claiming waiver by a third
party having a lawful right to make such disclosure on a non-confidential basis;
(v) is  published  with the prior mutual  agreement of the parties  after having
given  consideration  to appropriate  commercial and competitive  factors;  (vi)
comes  into the  public  domain  through  governmental  publication  of a patent
application;  or (vii) is  required  to be  disclosed  to file a patent or other
regulatory  application or to comply with applicable laws and  regulations.  The
obligations  under this Section 3.05 shall survive to the later of: (i) ten (10)
years  after the end of the  Development  Program;  or (ii) the  termination  or
expiration date of the last to expire of any license(s) granted pursuant to this
Agreement, to the extent the Development Program Technology,  Agouron Technology
or  Roche  Technology  is  applicable  to the  practice  of  grants  under  such
license(s);  or (iii) the expiration date of the last to expire of any patent(s)
within the Patent Rights on a Product.

         Section 3.06 Publication.  Agouron and Roche each acknowledge the other
party's interest in publishing certain of its results of the Development Program
to obtain recognition  within the scientific  community and to advance the state
of scientific  knowledge.  Both parties also recognize their mutual interests in
obtaining valid patent  protection for the Compound,  intermediates  thereof and
Products.  Consequently,  either party, its employees or consultants  wishing to
make a  publication  shall provide the other party the  opportunity  to review a
draft  manuscript  at least  thirty (30) days prior to the date of the  intended
submission for publication  and, upon the other party's written  request,  shall
delay  submission for a period (not greater than  forty-five  (45) days from the
date  of  such  written  request)  sufficient  to  provide  for  the  filing  of
appropriate patent application(s) for any patentable subject matter disclosed in
such  publication.  Furthermore,  in  acknowledgment  that  certain  Development
Program Technology, while not of a patentable subject matter, could be necessary
for the protection of the commercial interests of the parties, the parties agree
that the Global Joint  Development  Committee or its delegates shall 

                                       16
<PAGE>

review in a timely  manner (not greater than thirty (30) days from the date of a
written  request to the Global Joint  Development  Committee or its delegates) a
draft  manuscript,  and  propose the  conditions  under which the portion of the
Development  Program Technology  disclosed in the draft manuscript that could be
necessary to protect the  commercial  interests of the parties can be published.
If the Global Joint Development  Committee or its delegates do not object to the
publication  within thirty (30) days from the date of such written request,  the
requesting party (subject to the other party's right to request the 45-day delay
described  above for patentable  subject matter  disclosed in such  publication)
shall be free to  publish  such  manuscript.  If the  Global  Joint  Development
Committee or its delegates  object to the  publication of a portion of the draft
manuscript,  it shall  indicate  specifically  what  modification  to the  draft
manuscript it believes is appropriate to protect the commercial interests of the
parties and the reasons therefor.  After giving reasonable  consideration to the
suggestions of the Global Joint Development Committee, the party wishing to make
a publication shall have the final authority to determine the scope,  timing and
content of the publication.

               ARTICLE IV - MANAGEMENT STRUCTURE OF COLLABORATION

         Section 4.01 Management Committees.  The collaborative  development and
commercialization  effort  for the  Compound  and  Products  arising  out of the
Development  Program for cancer indications shall be coordinated and overseen by
three (3) committees, namely:

                  (a) A joint  committee  responsible  to discuss and coordinate
         the global development efforts directed to Registration of Products for
         cancer  indications  (hereinafter  referred  to as  the  "Global  Joint
         Development Committee").

                  (b) A joint  committee  responsible  to discuss and coordinate
         the global  marketing of Products for cancer  indications  (hereinafter
         referred to as the "Global Joint Marketing Committee").

                  (c) A joint  committee  responsible to oversee and approve the
         planning  and   budgeting  of  revenues   and  costs   resulting   from
         Co-Promotional  activities  if the  parties are  Co-Promoting  Products
         (hereinafter referred to as the "Global Joint Finance Committee").

These committees (and the project teams  established by such  committees)  shall
work in close cooperation.

         Section  4.02   Development   and   Registration.   Roche  and  Agouron
acknowledge   their  mutual   intention   generally  to  take  a  collaborative,
commercially  reasonable  approach to the timely development of the Compound and
Products  arising out of the  Development  Program for cancer  indications.  The
parties  further   acknowledge  their  mutual  willingness  to  discuss  ad  hoc
agreements  to  establish   appropriate   mechanisms   for  such   collaborative
development.  Recognizing  the  importance of timely  initiation of  development
activities,  however, Roche and 

                                       17
<PAGE>

Agouron agree to the following  basic  approach to  development  of Products for
cancer indications and to the conduct of the Global Joint Development  Committee
activities.

         (a) The  Global  Joint  Development  Committee  shall  meet in  regular
intervals,  at least * and shall be co-chaired by representatives from Roche and
Agouron.  Each party shall be entitled to participate in decisions affecting the
Development  Program  and to attend all key  development-related  meetings.  The
meeting locations of the Global Joint Development Committee shall *
        or at other sites as agreed to by the parties.  Meeting minutes shall be
promptly  prepared and  approved by  designated  representatives  of each of the
parties. Each party shall pay all of its respective expenses for such meetings.

         (b)      *

                                                                          Each
party   shall  also
designate a financial  advisor to the Global Joint Development  Committee.  Each
party's  members of the Global  Joint  Development  Committee  shall  reasonably
consider the adoption of the other party's  development  suggestions,  and shall
accept as many of such  development  suggestions as are  reasonable,  based upon
medical  and  business  rationale,  drug  supply,  and the need to  conduct  the
development  activities  in an  expeditious  manner.  If the parties  agree,  an
authorized  sublicensee for a Compound which is participating in the development
of such Compound may participate in such discussions.

         (c)      If the Global Joint  Development  Committee is unable to reach
agreement on any decision required of it, the issue shall be submitted for 
consideration, *

                                                                      If   they 
are unable to agree, then the issue shall be resolved by the *


         (d) The decisions of the Global Joint  Development  Committee  shall be
binding  on the  parties  and  shall  be  confirmed  in  writing  by  designated
representatives of each of the parties.

         (e)      The Global Joint  Development  Committee shall be responsible 
for the  coordination of the global collaborative  development  efforts directed
to Registration of Products arising out of the Development Program for 
cancer  indications  in the Territory and such other matters which the parties  
mutually agree to assign to it. The Global Joint Development Committee may, if 
necessary, modify *
provided, however, that the Development Program shall provide, at a minimum, 
for:  (i) the *




                                                                           The 

                                       18
<PAGE>

Global Joint Development Committee shall also have the authority to make 
decisions concerning the *
    arising out of the  Development  Program for cancer  indications.  
Additionally,  the Global Joint  Development Committee  shall  establish   
reasonable   publication   procedures   concerning Development  Program  
Technology  and,  upon the request of a party,  the Global
Joint Development Committee or its delegates shall review a draft manuscript and
propose  the  conditions  under  which the  portion of the  Development  Program
Technology  disclosed in the draft  manuscript which is necessary to protect the
commercial interests of the parties can be published.

         (f)      The Global Joint Development  Committee shall review and 
discuss the Development  Program for any country(s) involved, *



                  Development of Products arising out of the Development Program
for cancer indications shall be initially based upon *


                                                                    and   other 
development   activities   to  be performed by each of the parties.  The Global 
Joint Development  Committee shall review and discuss any projected  change in a
quarterly  operating  budget which exceeds the previously budgeted amount by 
more than *
     The parties acknowledge that, while the initial worldwide  development plan
and development budget are designed to achieve  Registration of Products arising
out of the Development  Program for cancer  indications in many countries of the
Territory,  it will be necessary to supplement the initial development budget to
achieve  Registration  in other  countries  of the  Territory.  The Global Joint
Development Committee shall *

be attached to this Agreement as updated Exhibits.  To the extent possible,  the
Development  Program shall provide for the generation and use of data which can 
be utilized to achieve Registration *
         Specific  information  which is  required  to achieve  Registration  in
individual  countries  shall be  provided  for, to the extent  possible,  in the
Development Program.

         (g)      Roche  and  Agouron  shall   collaborate  to  complete   
clinical   studies  aimed  at  achieving Registration of Products arising out of
the Development Program *





                                       19
<PAGE>





                           a party not  responsible  for a  development  
activity may provide  advisory and support services to the other party.  *



                                                                        assigned
to such  project  teams.  Roche and Agouron shall each use its diligent  efforts
in the  development and  Registration  of Products  arising out of 
the Development Program for cancer indications in accordance with the 
Development Program.  *
                   If a party  fails  to use its  diligent  efforts  in a timely
manner in a study or other  development  activities  assigned  to it,  the other
party shall be entitled to assume  responsibility  for conducting  such study or
other development activities.

         (h)  Roche  and  Agouron  shall  each  use  qualified  persons  in  the
development activities of the Development Program. In accordance with procedures
to be established by the Global Joint Development  Committee,  Agouron and Roche
may also engage consultants,  clinical research associates, outside contractors,
collaborators,  clinical  investigators  and  other  third  parties,  as  may be
necessary or  desirable,  to assist them in carrying out their  responsibilities
under the Development Program.

         (i) All work in  connection  with the  development  of the  Compound or
Products,  to the extent required by applicable  laws or  regulations,  shall be
conducted in  accordance  with Good  Laboratory  Practices,  Good  Manufacturing
Practices  and Good  Clinical  Practices,  as such rules of practice are amended
from time to time.

         (j) Roche and Agouron,  through the Global Joint Development Committee,
shall keep each other  informed of the  progress of the work being  performed by
them pursuant to the Development Program. This shall include progress reports as
required by the Global Joint Development Committee*
                                                                Agouron      and
Roche  shall  provide  each  other  with  access  to its  relevant  records  and
facilities to permit a reasonable review of the progress,  from time to time, of
the  activities  being  performed  by such  party  pursuant  to the  Development
Program.

         (k) Each  party's  members of the Global  Joint  Development  Committee
shall report and make recommendations to their managements regarding the matters
discussed at the meetings of the Global Joint Development Committee.

         (l) Each party agrees to use its diligent  efforts in  responding  in a
timely  manner,  but not more than thirty (30) days,  to requests from the other
party for preclinical and clinical results 

                                       20
<PAGE>

and other  information  concerning the  Development  Program to enable the other
party to comply with regulatory requirements for the Development Program. To the
extent possible,  * 
in the clinical  studies aimed at achieving  Registration of
Products arising out of the Development Program for cancer indications.

         (m) After consultation with Roche concerning the selection of a generic
name for the Compound,  Agouron shall have responsibility for making application
to the World Health Organization  International  Non-proprietary  Name Committee
and the U.S. Adopted Names Council to secure a generic name for the Compound.

         (n)      Subject to the other provisions of this Agreement, in the 
Roche Territory, *
          for a Product arising out of the Development Program for cancer 
indications *
    in the North American  Territory,  the Dossier for a Product  arising out of
the  Development  Program for cancer  indications * Prior to  Registration  of a
Product  arising  out of the  Development  Program for cancer  indications  in a
country, the party *
                                       on
such Product for cancer indications,  including communicating with health and/or
regulatory  authorities  in  such  country;  provided,  however,  to the  extent
reasonably possible, the other party shall have the right to review, comment and
participate  in  communications  concerning  such  Product  with  health  and/or
regulatory  authorities in such country.  Notwithstanding  the  preceding,  each
party shall be entitled to have *

                                                                        as  may 
be   necessary   to   obtain   and maintain the  Registration on a Product  
arising out of the Development  Program for cancer indications in any other 
country in the Territory.

         (o)      *






         Section 4.03      Marketing.  The *

                                                      Roche and Agouron  agree 
to the following  basic  approach to marketing of Products for cancer 
indications and the conduct of the Global Joint Marketing Committee activities:

         (a)  The  Global  Joint  Marketing  Committee  shall  meet  in  regular
intervals,  at least * and shall be co-chaired by representatives from Roche and
Agouron.  Each party shall be entitled to participate  in discussions  affecting
the  marketing  of Products  

                                       21
<PAGE>

arising out of the Development  Program for cancer  indications in the Territory
and to attend all key marketing-related  meetings.  The meeting locations of the
Global Joint  Marketing  Committee shall *                  
or at other sites as agreed to by the
parties.  Meeting minutes shall be promptly  prepared and approved by designated
representatives  of  each  of the  parties.  Each  party  shall  pay  all of its
respective expenses for such meetings.

         (b)      *





         (c)      If the Global Joint  Marketing  Committee is unable to reach  
agreement on any decision  required of it, the issue shall be submitted for 
consideration, *

                                                                            If  
they   are unable to agree, then the issue shall be resolved by the *


         (d) A decision of the Global Joint Marketing Committee shall be binding
on the parties, and shall be confirmed in writing by designated  representatives
of each of the parties.

         (e) The Global  Joint  Marketing  Committee  shall be  responsible  for
drafting a global marketing plan for a Product(s) arising out of the Development
Program for cancer indications (hereinafter referred to as the "Global Marketing
Plan") *
                                                                        The   
Global    Joint Marketing Committee shall also be responsible for *

                                    to  the  extent  possible.   The  Global  
Joint  Marketing  Committee  may,  if necessary, *                             
                  The Global Joint  Marketing  Committee may also review
and discuss decisions concerning the *


         (f) Under the direction of the Global Joint Marketing Committee,  Roche
shall be responsible for * for a Product arising out of the Development  Program
for cancer indications *
                             To the  extent  possible,  the local  marketing  
plans  shall be  consistent  with the Global Marketing Plan.

         (g)      It is the intent of the parties that *
                                                               arising  out of 
the  Development  Program for cancer indications wherever possible throughout 
the Territory.  The parties acknowledge their intention to *

                                       22
<PAGE>

arising out of the Development Program for cancer indications wherever possible.
The parties also acknowledge *
 with
*                                            arising  out  of  the  Development 
Program  for  cancer  indications wherever possible.

         (h) The parties  agree,  unless  prohibited  by law or  regulation,  to
exclusively  Co-Promote  Products  arising  out of the  Development  Program for
cancer  indications in the North American Territory under a single Trademark and
based upon a marketing plan to be agreed upon by the parties.  Agouron and Roche
agree to share equally  (50/50) Profits and Losses earned or incurred during the
fiscal year of the Marketing  Company from the sale of a Co-Promoted  Product in
the North American  Territory.  The parties further agree,  unless prohibited by
law or  regulation,  to  discuss  in good faith  future  rights  for  Agouron to
exclusively  Co-Promote  with  Roche  Products  arising  out of the  Development
Program  for  cancer  indications  in any or  all of the  European  Co-Promotion
Countries.  The parties' future European Co-Promotion arrangement shall be based
upon and subject to the following criteria:

                  (i)      *



                  (ii)     *





                  (iii)    *


                  (iv)     Agouron's  right to  Co-Promote  such Product in a 
selected  European  country  shall be subject to *



                  (v)      Agouron shall have the right to *






                  (vi)     Agouron shall have the *



                                       23
<PAGE>


                  (vii)    *










In the countries where the parties are Co-Promoting  Products,  the Global Joint
Marketing  Committee shall assign  Co-Promotional  activities  among the parties
based upon: *



                                                                               a
party  not  responsible  for  a Co-Promotional  activity may provide  advisory 
and support services to the other party.
*
                  in each of the countries in the North  American  Territory  
shall be overseen and approved by the Global Joint Marketing Committee. 
Notwithstanding the preceding, the parties agree that *
    Development Program for cancer  indications  in each of the countries in the
                North American Territory * The parties shall provide *
                                                                    Furthermore,
unless   the   parties   agree otherwise, Agouron *
by the Global Joint Marketing  Committee to Co-Promotional  activities for such 
Product in a European  Co-Promotion Country *


The Global Joint Marketing Committee may *
                                     to  advise  and  support   Co-Promotional 
activities   if  the  parties  are Co-Promoting  Products.  The Global Joint 
Marketing Committee shall establish  procedures  concerning the scope and
conduct of activities (including decision-making procedures) *


         (i)      The Global Joint Finance Committee shall *




                                       24
<PAGE>

                                     the parties, through the Global Joint 
Marketing Committee, shall *

to a Co-Promotional  country.  If a party  significantly fails to fulfill its 
obligation to provide its agreed upon *
                                     in a  Co-Promotional  country  during a 
fiscal year of the Marketing  Company, then the parties shall negotiate in good 
faith an appropriate  adjustment in the Profit Sharing percentage for such 
country for such fiscal year period.

         (j)      The Marketing  Company in each country shall be responsible  
for  distribution  of the Product in such country.

         (k)      *









         (l) Roche and Agouron shall each use qualified persons in the marketing
activities of Products.  In accordance  with procedures to be established by the
Global Joint Marketing Committee, Agouron and Roche may also engage consultants,
and other third  parties,  as may be necessary or  desirable,  to assist them in
carrying out their marketing  responsibilities  provided that internal resources
are not then feasibly or practically  available from either of the parties which
can perform in similarly  expeditious and cost-efficient  manner the tasks to be
assigned to such  consultants  and third parties;  provided  however,  that each
party *


         (m) Roche and Agouron,  through the Global Joint  Marketing  Committee,
shall keep the other party  informed of their  marketing  activities,  and shall
review,  discuss  and agree  upon the  conduct of  additional  post-Registration
clinical studies for a Product for cancer indications which are not conducted as
part of the Development  Program and marketing  studies for a Product for cancer
indications;   the  conduct  of  clinical  studies  for  a  Product  for  cancer
indications  which are  conducted as part of the  Development  Program  shall be
governed by the provisions of Section 4.02. This shall include  progress reports
as required by the Global Joint Marketing Committee *
                  and the planned activities of the succeeding period.

         (n) Each party's members of the Global Joint Marketing  Committee shall
report and make  recommendations  to their  managements  regarding  the  matters
discussed at the meetings of the Global Joint Marketing Committee.

                                       25
<PAGE>

         (o) After  Registration  of a Product  arising  out of the  Development
Program  for cancer  indications  in a country,  the  Marketing  Company of such
Product in such country shall be  responsible  for  maintaining  the Dossier for
such  Product.  The  Marketing  Company in a country  shall be  responsible  for
responding,  in a timely  manner,  to inquiries and for  reporting  adverse drug
reactions  related to such  Product  after the  Product is on the market in such
country. Notwithstanding the Marketing Company's ultimate responsibility for the
professional  services and health and/or regulatory  authorities  communications
relating to such Product after the Product is on the market in a country, to the
extent  reasonably  possible,  the other  party  shall have the right to review,
comment and  participate  in  communications  concerning  such  Product with the
health and/or regulatory authorities in such country.  Furthermore,  Agouron and
Roche  shall  each be  entitled  to  respond to  routine  medical  questions  or
inquiries directed to them. Each party shall use its best efforts to provide the
other party with all information  reasonably  necessary to respond  properly and
promptly to any such  questions or  inquiries;  the parties shall also use their
best efforts to keep such information  current.  Without limiting the foregoing,
Agouron  and Roche  agree to  notify  the other  party of any  severe,  serious,
alarming or unexpected complaints which they receive,  whether or not determined
to be attributable to a Product,  by telephone within twenty-four (24) hours and
in writing within three (3) business days of receipt of the complaint. All other
complaints  shall be forwarded by a party to the other party within  thirty (30)
calendar  days of its receipt of the  complaint.  The parties  shall confer with
respect to responding to anticipated inquiries and questions.

         Section 4.04      Supply of Compound and Product.

         (a) It is anticipated that timely  development of the Compound and/or a
Product will require the manufacture of significant  amounts of the Compound and
that  successful  worldwide  commercialization  of the Compound and/or a Product
will require  annual  production of large  quantities  of the Compound  and/or a
Product.
As part of the Development Program for the Compound, *


          the  parties   also  agree  to  continue   to  use   technically   and
commercially  reasonably  efforts  to  reduce  the  costs of  manufacturing  the
Compound  and a  Product  throughout  the  period  of  commercialization  of the
Product. The Global Joint Development Committee shall have the authority to make
decisions  concerning  the sourcing of clinical trial supply of the Compound and
Products arising out of the Development  Program for cancer  indications.  Roche
and Agouron, through the Global Joint Development Committee,  agree to cooperate
to identify low-cost  commercial  manufacturing  sources for the Compound and/or
Products  arising  out of the  Development  Program for cancer  indications.  To
assure a continuous  supply of the  Compound  and/or a Product  during  clinical
development and commercialization, Roche and Agouron may also engage one or more
third party  contract  manufacturers  for  production  of the Compound  and/or a
Product. *


                                       26
<PAGE>















         (b)  All  Product  is  to  be   manufactured  in  accordance  with  the
specifications to be determined during  development and later attached hereto in
Attachment 3 to this Agreement and any amendments thereto.  All Product shall be
furnished with a certificate of analysis.

         (c) Each party shall grant the other party a right of  reference to the
drug  master  file for a Product in the  countries  where the other  party,  its
Affiliates or sublicensees are marketing such Product,  and shall take all other
steps as may be reasonably  requested by a manufacturer  of such Product for the
limited  purpose of enabling it to manufacture the Product for such other party.
The  manufacturer  shall  manufacture the Product in compliance with the Dossier
for the Product.  Each party shall  promptly and fully advise the other party of
any changes,  alterations  or amendments to the drug master file for the Product
or any  amendments,  instructions  or  specifications  required by the health or
regulatory authority, and the parties shall confer with respect to the best mode
of compliance with any such requirements.

         (d) In the event  any  Product  delivered  hereunder  must be  recalled
because of action by the relevant health authority,  the parties shall cooperate
fully with each other in conducting such recall to the full extent  necessary to
ensure that the recall is effective.  Prior to initial Registration of a Product
in a country,  any recall  expenses for such  Product in such  country  shall be
included in the Development Costs. After initial  Registration of a Product in a
country,  the party  marketing such Product in such country shall be responsible
for any recall  expenses for such Product in such country.  Any recall  expenses
incurred  by the party  marketing a Product in a country  shall be a  deductible
expense when  calculating  Profits and Losses from the sales of such Product for
such country.


                                       27
<PAGE>


        ARTICLE V - LICENSE FEES, PROFIT AND LOSS SHARING AND ROYALTIES;
                    DEVELOPMENT COSTS; PREMARKETING EXPENSES;
                             GENERAL LICENSING TERMS

         All of the  accounting  terms used in this Article V, if  identified by
the use of  capitalization  of the first  letter of each  word,  shall  have the
meaning  described in Attachment 2, which  attachment shall also contain details
of the calculation, accounting, and sharing of Profits and Losses.

         Section 5.01      License Fees, Profit and Loss Sharing and Royalties.

         (a) In  partial  consideration  for the  rights  granted  to  Roche  by
Agouron,  Roche hereby agrees to pay to Agouron  non-refundable license issuance
fees as follows:

                                                                   USD (MM)
                                                                   --------
  By June 28, 1996.                                                 $   5.0

 *
                                                                          *


  *


  *                                                                       *


  *

  *                                                                       *


  *

                                                                          *


   *

                                                                          *


   *

                                                                          *


   *

                                                                          *




                  *


                                                                          *





                                            TOTAL                         *


         (b)      In partial  consideration  for the rights  granted  each of 
the  parties in this  Agreement,  the parties agree as follows:

                  (i) Unless the  parties  agree upon  another  sharing  method,
         Profits  or  Losses  from the  sales  of  Products  arising  out of the
         Development  Program  for  cancer  indications  in a country  where the
         parties are  Co-Promoting  Products shall be shared between the parties
         in accordance with the provisions of Sections 4.03(h) and 4.03(i).

                  (ii)     In countries where the parties are not Co-Promoting 
         Products, Roche shall pay Agouron *

                                       28
<PAGE>

         Section 5.02      Development Costs.

         (a)      The parties shall share Development Costs as follows:

                  (i)      From the  Effective  Date,  Roche shall be  
          responsible  for  payment of eighty  percent (80%) of the Development 
          Costs *

                                       and
         Agouron  shall be  responsible  for payment of twenty  percent (20%) of
         such  Development  Costs;  provided,  however,  that Roche shall not be
         responsible  for  Development  Costs  incurred for  services  performed
         before June 19,  1996,  even if such  services  are paid for after such
         date. If Agouron has elected to Co-Promote a Product arising out of the
         Development  Program  for cancer  indications  in one or more  European
         Co-Promotion Countries, *



                  (ii)     Development Costs incurred for services *

                                                                                
                  In   addition  to  its  twenty percent (20%) share of 
                  worldwide  Development Costs because of its Co-Promotional  
                  activities in the North  American Territory, *



                  (iii)    Agouron's prorata  percentage share of Development 
                  Costs for such European  Co-Promotion Country *



                  (iv)     Development Costs allocated to a European
                  Co-Promotion Country shall *




                                                                          Unless
                  the parties agree otherwise, *                                
                  shall  be   deemed  to  have been incurred for the benefit of 
                  *

         (b) Within * days after the end of a semi-annual calendar period ending
on  either  June 30 or  December  31  during  which the  parties  have  incurred
Development  Costs,  each party  shall  prepare and deliver to the other party a
full and true  accounting  of such  party's  actual  Development  Costs for such
semi-annual  period.  The form of the report shall be consistent with the format
presented in Schedule 1 to  Attachment  1, and shall detail  actual  Development
Costs 

                                       29
<PAGE>

by major cost categories,  consistent with the accounting  classifications
and methods  agreed upon by the  parties.  The  accuracy of the report  shall be
reviewed and signed by an appropriate financial employee of the reporting party.
The calculation of Development  Costs shall not include any selling or marketing
costs and expenses.

         (c)      Development Costs shall be funded and reimbursed as described 
in Attachment 1.

         (d) Each  party  shall  maintain  books of  account  and  complete  and
accurate records of all of its Development  Costs in sufficient detail to permit
the other  party to confirm  the  correctness  of such  items.  Each party shall
provide  the other  party,  upon  reasonable  request,  with  copies of invoices
supporting significant third party expenditures. *


















                                      To the extent actual Development Costs 
vary from reported  Development Costs, adjustments shall be made to future 
invoices.

         (e)  Additional  details  relating  to  the  definition,   calculation,
reporting  requirements and  reimbursement  procedures for Development Costs are
set forth in Attachment 1.

         Section 5.03      Premarketing  Expenses.  If Agouron and Roche are  
Co-Promoting a Product arising out of the Development Program for cancer
indications in a country, then *




                                       30
<PAGE>


         Section 5.04      General Licensing Terms.

         (a)      Profits and Losses for  countries  where the parties are  
Co-Promoting  a Product  arising out of the Development Program for cancer 
indications shall be determined on *
                                    Attachment  2 sets forth  additional  
definitions  and details  relating to the calculation of Profits and Losses.

         (b)  It  is  the  intent  of  the  parties  that  if  the  parties  are
Co-Promoting  a  Product  arising  out of the  Development  Program  for  cancer
indications in a country, then the parties shall *


                                              If applicable  laws,  regulations
or accounting  rules do not permit such accounting treatment, *


         (c) No sales  shall be deemed to have  occurred  as the result of sales
between and among the  parties,  their  Affiliates  and  sublicensees;  it being
understood that sales occur when made to non-Affiliated  third party purchasers.
A sale of a Product  shall be deemed  to have  been  made upon the  earliest  of
invoicing or delivery of the Product for value to a  non-Affiliated  third party
purchaser.  In the case of a sale or other disposal of a Product for value other
than in an arm's length  transaction  exclusively  for money,  such as barter or
counter  trade,  sales shall be  calculated  using the fair market  value of the
Product (if higher than the stated sales price) in the country of disposal.

         (d)      *










                  then the issue  shall be  decided by  binding  arbitration  in
accordance with the provisions of Section 7.03 hereof.

         (e)      *





                                       31
<PAGE>



         (f) In  calculating  Profits and Losses with  respect to a  Combination
Product in a  country,  the  parties  shall  enter into good faith  negotiations
regarding the percentage of the Adjusted Gross Sales of such Combination Product
to be used in  calculating  Profits and Losses with respect to such  Combination
Product  in  such  country.  If the  parties  are  unable  to  agree  upon  such
percentage,  the  percentage  of the  Adjusted  Gross Sales of such  Combination
Product  to be used in  calculating  Profits  and  Losses  with  respect to such
Combination Product in a country shall be equal to *



                                                If the  numerator  and  
denominator  cannot  be  determined  in the manner set forth above, then the 
numerator *


                                                                In  each  case, 
the  cost is to be  determined  in accordance with the party's standard 
accounting procedures.

         (g) In calculating royalties with respect to a Combination Product, the
parties shall enter into good faith negotiations regarding the percentage of the
Net  Sales  of such  Combination  Product  to be used in  calculating  royalties
payable with respect to such Combination Product on a country-by-country  basis.
If the parties are unable to agree upon such percentage,  royalties with respect
to a Combination Product in a country shall *




                                                                       If  the  
numerator   and denominator cannot be determined in the manner set forth above, 
then the numerator shall be the *

                                                                        In  each
case,   the cost is to be determined in accordance with the party's standard 
accounting procedures.

         (h) Division of Profits and Losses from the sales of a Product  arising
out of the Development  Program for cancer  indications shall * from the date of
the Initial  Commercial  Sale or license to a third party,  its  Affiliates,  or
sublicensees   of  such  Product  in  such  country  (or,  if  the  parties  are
Co-Promoting a Product in a country, the date on which premarketing expenses are
first incurred), until *




                                       32
<PAGE>






         (i)  Royalties  due on the  sale of a  Product  shall be  payable  on a
country-by-country  basis from the date of Initial  Commercial  Sale by a party,
its Affiliates or sublicensees of such Product in such country, until *








Notwithstanding the preceding where a country is included in the European Union,
an extension  in the period  during which the payment of royalties is due on the
sale of a Product  resulting  from the  application  of the  provisions of (iii)
above shall not be  applicable  if  prohibited  by law.  The  obligation  to pay
royalties shall be imposed only once with respect to each unit of Product sold.

         (j) The parties  agree that the  accounting  and payment of Profits and
Losses and  reimbursement  of  Allowable  Expenses  from the  Co-Promotion  of a
Product  arising  out of the  Development  Program for cancer  indications  in a
country shall comply with the following terms and conditions:

                  (i)      As soon as possible, but no later than *
                                             the   Marketing   Company   in  
         such   country   shall   provide   the  non-Marketing  Company  with 
         its good faith  estimate  of the amount of Adjusted Gross Sales and  
         Sublicense  Revenues in such country for such  Co-Promoted  Product for
         such  calendar  month,  and the  non-Marketing Company shall submit to 
         the Marketing  Company its good faith  estimate of its Sublicense 
         Revenues in such country for such Co-Promoted Product for such calendar
         month.

                  (ii) * after  the  end of a  calendar  quarter  in  which  the
         parties  have  Co-Promoted  a Product  arising  out of the  Development
         Program for cancer  indications  in a country,  the  Marketing  Company
         shall pay the non-Marketing Company its share of *
            generated  by the  Co-Promotion  of such Product in such country for
         such  calendar  quarter,  or submit  to the  non-Marketing  Company  an
         invoice for its share of * in such country for such  calendar  quarter;
         the  

                                       33
<PAGE>

         non-Marketing  Company shall pay such invoice within * The * for a
         calendar quarter shall be based on the *

                                                              for the applicable
         calendar quarter and the *
          for  such  country  for the  applicable  calendar  quarter  (agreed to
         by the  parties  pursuant  to the provisions of Section 4.03(i)), as *
                                      A party's share of *                      
         for   a   country   in   a  calendar quarter shall be determined 
         pursuant to the provisions of Section 5.01(b)(i).

                  (iii) * after  the end of a  calendar  quarter  in  which  the
         parties  have  Co-Promoted  a Product  arising  out of the  Development
         Program for cancer  indications  in a country,  the  Marketing  Company
         shall *
                                                                                
         incurred   in  such   country during such calendar quarter.  A party's 
         *
                   shall be based on the budget  for the  applicable  calendar  
         quarter  (agreed to by the  parties pursuant to the terms of Section 
         4.03(i)), as such budget is revised and updated.  If the parties have *
          





                  (iv) * after the end of a semi-annual  calendar  period ending
         on  either  June 30 or  December  31  during  which  the  parties  have
         Co-Promoted a Product arising out of the Development Program for cancer
         indications,  each party shall furnish and deliver to the other party a
         full and true accounting of its actual Adjusted Gross Sales, Sublicense
         Revenues and Allowable  Expenses for such Product for such  semi-annual
         period for each  country in which the  parties  have  Co-Promoted  such
         Product.  The  reporting  party's  Adjusted  Gross  Sales,   Sublicense
         Revenues and Allowable  Expenses for such  semi-annual  period shall be
         reviewed  and  signed  by an  appropriate  financial  employee  of  the
         reporting party.

                  (v)      The  net  amount  of  any  payment  adjustments  due 
         between  the  parties  because  of differences *

                                                                            The 
         net amount of any  payment adjustments due between the parties because 
         of differences in *




                  (vi) If a party in good faith  disputes the  correctness  of a
         portion  of the  other  party's  accounting,  the party  shall  only be
         obligated to reimburse the undisputed portion 

                                       34
<PAGE>

          of *

                                                                  and shall be  
         obligated  to  reimburse or pay the balance,  if any, upon resolution 
         of the disputed  issues.  The parties agree  to  use  their  best  
         faith  efforts  to  resolve  any  disputes concerning the correctness 
         of Allowable Expenses and the calculation of Profit and Losses as soon
         as possible.

                  (vii) Any  payments  due pursuant to the terms of this Section
         5.04(j)  that are not paid on or before the date such  payments are due
         shall  bear  interest  at the lower of: (A) the  average  one (1) month
         London Interbank  Offered Rates, as reported by Datastream from time to
         time, plus one hundred (100) basis points;  or (B) the highest interest
         rate permitted by applicable  law,  calculated on the number of days in
         each month that such payment is delinquent.

         (k) The parties  agree that the  accounting  and  payment of  royalties
shall comply with the following terms and conditions:

                  (i)      As soon as possible, but no later than *             
         after  the  end of a  calendar  month, a party owing a royalty shall 
         provide the other party with its *


                  (ii)     On or before the last business day in *
                   of each and every  calendar year for as long as royalties are
         due following the commencement of the marketing of Products,  the party
         owing  the  royalty  shall  pay to the  other  party a sum equal to the
         aggregate of the royalty due on such party's *




                  (iii) * after the end of a semi-annual  calendar period ending
         on either June 30 or December 31 during which there was a Net Sale of a
         Product upon which a royalty was due, the party owing the royalty shall
         furnish and deliver to the other  party a full and true  accounting  of
         the actual Net Sales of such  Product for such  semi-annual  period for
         each  country  for which such  royalty is due.  The  reporting  party's
         accounting of royalty for such semi-annual period shall be reviewed and
         signed by an appropriate financial employee of the reporting party, and
         shall identify all relevant details regarding *



                  (iv)     The  net  amount  of  any  payment  adjustments  due 
         between  the  parties  because  of  differences in *

         The net amount of any payment adjustments due between the parties 
         because of 

                                       35
<PAGE>

         differences in *


                  (v) Any  royalty  payments  due that are not paid on or before
         the date such payments are due shall bear interest at the lower of: (A)
         the average one (1) month London  Interbank  Offered Rates, as reported
         by Datastream  from time to time,  plus one hundred (100) basis points;
         or  (B)  the  highest   interest  rate  permitted  by  applicable  law,
         calculated  on the number of days in each  month  that such  payment is
         delinquent.

         (l) Each party shall maintain and cause its Affiliates and sublicensees
to maintain books of account and complete and accurate records pertaining to the
sale or other disposition of Products, Allowable Expenses and of the royalty and
other amounts  payable under this  Agreement in sufficient  detail to permit the
other party to confirm the correctness of such items. *


























                                       36
<PAGE>


         (m) A party  owing a royalty or other  payment to the other party shall
be entitled to withhold from such payment the amount, if any, of any withholding
tax assessable to the party due the payment, provided evidence of payment of any
such  tax is  promptly  provided  to  such  party.  If  any  taxes  (other  than
value-added taxes) are imposed on payments of royalties or profits to Agouron or
Roche and are  required  to be withheld  therefrom,  such taxes shall be for the
account of Agouron or Roche,  respectively,  and the  payments  shall be reduced
accordingly.  Roche and Agouron  shall each advise the other and provide it with
copies of the tax receipts for all taxes  deducted from the payment of royalties
or profits.

         (n) The costs of  defending  or settling any claim or suit by any third
party for  infringement of a patent of such third party by a party's practice of
the Patent Rights,  Agouron  Technology,  Roche Technology,  and/or  Development
Program Technology in discovering,  developing, manufacturing or commercializing
the Compound, intermediates thereof and/or Products shall be *


         (o) Upon  expiration  of the  foregoing  Profits and Losses  sharing or
royalty obligations in a country, which shall also be the expiration date of the
licenses granted in such country pursuant to Sections 2.01(a),  2.01(b), 2.01(c)
or 2.03, each party *


                                     for cancer  indications in such country on 
a  non-exclusive  basis;  provided, however, that *


         (p) The parties agree in the future to use their reasonable  efforts to
negotiate any additional licensing terms for the Compound, intermediates thereof
and/or Products  arising out of the Development  Program for cancer  indications
which may be necessary to clarify the rights and obligations of the parties.

         Section 5.05      Foreign Currency.

         (a) Development Costs, Patent and Trademark Costs,  Profits and Losses,
Adjusted Gross Sales, Net Sales,  Sublicense Revenues,  Allowable Expenses,  and
any  royalty  amounts  shall be stated in United  States  dollars.  Payments  of
Development  Costs,  Patent and Trademark Costs,  Profits and Losses,  Allowable
Expenses and  royalties  shall be made in United  States  dollars.  Any required
conversion of Development Costs, Patent and Trademark Costs, Profits and Losses,
Adjusted Gross Sales, Net Sales,  Sublicense Revenues,  Allowable Expenses,  and
any royalty  amounts to United  States  dollars  shall be done using the monthly
average rate of exchange for the calendar month in which such Development Costs,
Patent and Trademark Costs, Profits and Losses, Adjusted Gross Sales, Net Sales,
Sublicense Revenues,  Allowable Expenses,  and any royalty amounts were incurred
or first determined.

                                       37
<PAGE>

         (b)      The conversion from a foreign currency to United States 
dollars shall be made by *





         (c)      *



















         (d) If London  Interbank  Offered Rates are no longer  available due to
the implementation of the European Economic and Monetary Union, any reference to
the London  Interbank  Offered  Rates in this  Agreement  shall be replaced by a
comparable  reference interest rate for the single currency "EURO" determined at
the financial center where the reference is made. If no such reference  interest
rate can be determined at such financial center,  the parties shall agree upon a
new reference  interest rate to be used as appropriate in this Agreement in lieu
of the unavailable London Interbank Offered Rates.

                        ARTICLE VI - TERM AND TERMINATION

         Section 6.01  Termination for Breach.  Either party may, at its option,
terminate  this  Agreement for cause in the event the other party shall commit a
material  breach of this Agreement  (including the failure of a party to pay its
undisputed share of Development Costs) and shall fail to cure such breach during
the one hundred  twenty (120) day period  (thirty (30) day period in the case of
any payment default)  following  receipt of a written notice of such breach from
the non-breaching  party. After the end of the applicable cure period, the party
who has the right of termination may exercise its  termination  option by giving
the breaching  party prior  

                                       38
<PAGE>

written  notice of at least fifteen (15) days of its election to terminate.  Any
termination  of this  Agreement  shall not release the breaching  party from any
obligations incurred hereunder, and the non-breaching party shall be entitled to
pursue an action for damages arising as a result of such material breach.

         Section 6.02      *

         (a)      *































         (b)      *





                                       39
<PAGE>



         (c)      *





         Section 6.03      Termination  by  Mutual   Agreement.   The  parties  
may  at  any  time  terminate  this Agreement, in part or in its entirety, by 
mutual written agreement.

         Section 6.04 Termination Upon Bankruptcy.  In the event that a party is
subject to any proceeding  under the bankruptcy laws, or to the appointment of a
receiver,  trustee or  liquidator  of its business or  substantially  all of its
assets,  and such  proceeding,  if  involuntary,  is not dismissed or discharged
within one hundred fifty (150) days after such proceeding is instituted, or upon
the  liquidation,  dissolution,  or  winding  up  of  its  business,  then  this
Agreement,  at the  election  of the other  party,  shall be  terminated  in its
entirety  for cause upon a notice in writing of at least  fifteen (15) days from
the party who is not bankrupt or insolvent.

         Section 6.05 Disposition of Inventory. In the event of the cancellation
or  termination  of any license  rights with respect to a Product,  inventory of
such Product may be sold for up to six (6) months after date of  cancellation or
termination, provided required payments, if any, are paid thereon.

         Section 6.06 Effect of  Termination.  The termination of this Agreement
shall, to the extent not otherwise  expressly  provided  herein,  not affect the
rights and  obligations of the parties under this Agreement with respect to: (i)
the parties'  obligations of  confidentiality,  indemnification and compensation
for  services  performed;  (ii) a party's  liability  for failure to fulfill its
obligations  or  undertakings  under  this  Agreement;  and (iii) the  rights or
obligations  of the  parties  otherwise  expressly  stated in the  Agreement  to
survive the  termination  of this  Agreement.  If this  Agreement is terminated,
Agouron's  obligations  under Sections 2.02(b) and 4.02(o) shall terminate.  Any
other provisions of this Agreement which by their nature are intended to survive
termination  shall also survive.  Upon any  termination of this Agreement in its
entirety because of a breach of the other party, neither party waives any rights
to any remedies it may have arising out of the termination.  In the event of any
breach by a party with respect to obligations which continue after a termination
in its  entirety  of this  Agreement,  the  non-breaching  party  shall have all
remedies  available to it, as if the Agreement  were still in effect on the date
of such breach.



<PAGE>


         ARTICLE VII - WARRANTIES AND COVENANTS; INDEMNITIES; INSURANCE;
           DISPUTE RESOLUTION; GOVERNMENTAL APPROVALS;EXPORT CONTROLS

         Section 7.01      Warranties and Covenants.

         (a) Each party  represents  and warrants to the other party that it has
the legal power, authority and right to enter into this Agreement and to perform
all of its respective  obligations  set forth herein,  including the attachments
hereto.

                                       40
<PAGE>

         (b) Agouron represents and warrants that, to the best of its knowledge,
it has disclosed to Roche the material results of preclinical and human clinical
testing of the Compound completed prior the Effective Date.

         (c) Agouron represents and warrants that, as of the date this Agreement
is  executed,  it was not  aware  of the  existence  of any  patents  owned  and
Controlled by a third party covering the Compound which would materially prevent
the parties from commercializing the Compound.

         (d) Each  party  covenants  that it shall not commit any act or fail to
take any action which,  in any  significant  way,  would be in conflict with its
material obligations under this Agreement and the attachments hereto.

         (e) Each party  promises to comply in all  material  respects  with the
terms of the licenses granted to it under this Agreement,  and with all federal,
state,  local  and  foreign  laws,  rules  and  regulations  applicable  to  the
development,   manufacture,   distribution,  import  and  export,  and  sale  of
pharmaceutical products pursuant to this Agreement.

         (f) EXCEPT AS OTHERWISE  EXPRESSLY PROVIDED IN THIS AGREEMENT,  EACH OF
THE PARTIES MAKES NO WARRANTIES,  EXPRESSED OR IMPLIED,  OF  MERCHANTABILITY  OR
FITNESS FOR A  PARTICULAR  PURPOSE OF ANY  SUBJECT  MATTER  INCLUDED  WITHIN THE
CLAIMS OF THE PATENT RIGHTS,  INCLUDING THE COMPOUND. THE PARTIES UNDERSTAND AND
AGREE THAT  DEVELOPMENT  AND  COMMERCIALIZATION  OF THE COMPOUND AND/OR PRODUCTS
WILL  INVOLVE  APPROVAL  BY  REGULATORY  AUTHORITIES,   AND  THAT  NO  PARTY  IS
GUARANTEEING THE SAFETY OR EFFICACY OF THE COMPOUND AND/OR PRODUCTS, OR THAT THE
COMPOUND AND/OR PRODUCTS WILL RECEIVE THE REQUIRED APPROVALS.

         Section 7.02      Indemnities; Insurance.

         (a) Roche shall indemnify and hold harmless Agouron and its Affiliates,
employees,  and agents (an "Agouron Indemnified Party") from and against any and
all  liabilities,  losses,  damages,  costs, or expenses  (including  reasonable
investigative  and  attorneys'  fees)  which the Agouron  Indemnified  Party may
incur, suffer or be required to pay resulting from or arising in connection with
any  product   liability  or  other   claims,   other  than  claims  for  patent
infringement,  arising from the use by any person of any Product,  to the extent
such product  liability or other claim results from the  negligent,  reckless or
intentional  misconduct  of Roche,  its  Affiliates  or  sublicensees,  or their
respective employees and agents, or on account of Roche's failure to fulfill its
obligations or undertakings under this Agreement;  provided, however, that in no
event shall Roche be liable to an Agouron  Indemnified  Party for any  indirect,
incidental,  special or  consequential  damages,  including  loss of revenues or
profits from sales of Products.

         (b) Agouron shall indemnify and hold harmless Roche and its Affiliates,
employees, and agents (a "Roche Indemnified Party") from and against any and all
liabilities,   losses,   

                                       41
<PAGE>

damages,  costs, or expenses (including reasonable  investigative and attorneys'
fees) which the Roche Indemnified Party may incur, suffer or be required to pay,
resulting  from or arising in  connection  with any product  liability  or other
claims, other than claims for patent  infringement,  arising from the use by any
person of any  Product,  to the extent  such  product  liability  or other claim
results from the negligent,  reckless or intentional  misconduct of Agouron, its
Affiliates or  sublicensees,  or their  respective  employees and agents,  or on
account of Agouron's  failure to fulfill its obligations or  undertakings  under
this Agreement; provided, however, that in no event shall Agouron be liable to a
Roche Indemnified Party for any indirect,  incidental,  special or consequential
damages, including loss of revenues or
profits from sales of Products.

         (c) To the extent that a product liability or other claim, other than a
claim  for  patent  infringement,   results  from  the  negligent,  reckless  or
intentional misconduct of both of the parties,  their Affiliates,  sublicensees,
or their  respective  employees  and agents,  the  parties  agree to share in an
equitable  manner  such  liabilities,  losses,  damages,  costs,  or expenses in
proportion  to the  relative  fault of each of the  parties,  their  Affiliates,
sublicensees, or their respective employees and agents.

         (d) Unless the parties agree otherwise, all other liabilities,  losses,
damages,  costs, or expenses (including reasonable  investigative and attorneys'
fees) under this Section  7.02  relating to or involving a Product in a country,
except as provided by the terms of Sections  7.02(a),  (b) and (c), shall be the
responsibility  of the party  marketing such Product in such country.  The party
marketing a Product in a country shall indemnify the non-marketing party in such
country from and against any and all  liabilities,  losses,  damages,  costs, or
expenses  (including  reasonable  investigative  and attorneys' fees) which such
non-marketing  party may incur,  suffer or be required to pay resulting  from or
arising in connection  with any product  liability or other  claims,  other than
claims  for  patent  infringement,  arising  from the use by any  person of such
Product  in such  country.  Section  3.02  sets  forth  the  parties'  liability
obligations  arising from claims for patent  infringement.  Any payments made by
the party marketing a Product in a country pursuant to the terms of this Section
7.02(d) shall be a deductible  expense when calculating  Profits and Losses from
the sales of such Product for such country.

         (e)      The aforesaid  obligations of the  indemnifying  party shall 
be subject to the indemnified  party fulfilling the following obligations:

                  (i) The  indemnified  party  shall  fully  cooperate  with the
         indemnifying party in the defense of any claims,  actions,  etc., which
         defense shall be controlled by the indemnifying party.

                  (ii) The indemnified  party shall not, except at its own cost,
         voluntarily  make any payment or incur any expense  with respect to any
         claim or suit  without the prior  written  consent of the  indemnifying
         party, which consent such party shall not be required to give.

                                       42
<PAGE>

                  (iii)  Promptly  after  receipt  by the  indemnified  party of
         notice of the  commencement  of any  litigation or threat thereof which
         may reasonably  lead to a claim for  indemnification,  such party shall
         notify the indemnifying party.

         (f)      The parties agree to maintain appropriate amounts of product 
liability insurance coverage.

         Section 7.03 Dispute  Resolution.  In the event of any  controversy  or
claim arising out of or relating to any provision of this Agreement, the parties
shall  try  to  settle  their  differences  amicably  between  themselves.   Any
unresolved  disputes arising between the parties relating to, arising out of, or
in any way connected with this Agreement or any term or condition hereof, or the
performance  by either party of its  obligations  hereunder,  whether  before or
after  termination  of this  Agreement,  except as  otherwise  provided  in this
Agreement,  shall be finally resolved by binding  arbitration.  Whenever a party
shall decide to institute arbitration proceedings,  it shall give written notice
to that effect to the other party.  The party  giving such notice shall  refrain
from  instituting  the  arbitration  proceedings for a period of sixty (60) days
following such notice.  If Roche is the party  initiating the  arbitration,  the
arbitration  shall be held in San Diego,  California,  according to the rules of
the American Arbitration Association ("AAA"). If Agouron is the party initiating
the arbitration,  the arbitration shall be held in Newark, New Jersey, according
to the  rules  of the  AAA.  The  arbitration  shall  be  conducted  by a single
arbitrator  mutually chosen by the parties.  If the parties can not agree upon a
single  arbitrator  within  fifteen  (15)  days  after  the  institution  of the
arbitration  proceeding,  then the arbitration  shall be conducted by a panel of
three  arbitrators  appointed in accordance with AAA rules;  provided,  however,
that each party  shall,  within  thirty (30) days after the  institution  of the
arbitration proceedings,  appoint one arbitrator with the third arbitrator being
chosen by the other two  arbitrators.  If only one party appoints an arbitrator,
then such arbitrator  shall be entitled to act as the sole arbitrator to resolve
the  controversy.  Any  arbitration  hereunder shall be conducted in the English
language, to the maximum extent possible.  All arbitrator(s) eligible to conduct
the arbitration must agree to render their opinion(s) within thirty (30) days of
the final arbitration  hearing.  The  arbitrator(s)  shall have the authority to
grant  injunctive  relief and specific  performance and to allocate  between the
parties the costs of  arbitration  in such  equitable  manner as he  determines;
provided,  however,  that each party shall bear its own costs and attorneys' and
witness'  fees.  Notwithstanding  the terms of this Section  7.03, a party shall
also  have  the  right  to  obtain,  prior to the  arbitrator(s)  rendering  the
arbitration  decision,  provisional  remedies,  including  injunctive  relief or
specific   performance,   from  a  court  having   jurisdiction   thereof.   The
arbitrator(s)  shall, upon the request of either party,  issue a written opinion
of the findings of fact and  conclusions of law and shall deliver a copy to each
of the parties. Decisions of the arbitrator(s) shall be final and binding on all
of the  parties.  Judgment on the award so rendered  may be entered in any court
having jurisdiction thereof.

         Section 7.04 Governmental Approvals. Roche and Agouron shall obtain any
government approval(s) required to enable this Agreement to become effective, or
to enable any payment hereunder to be made, or any other obligation hereunder to
be  observed  or  performed.  


                                       43
<PAGE>

Each party shall keep the other  informed of its progress in obtaining  any such
government  approval  and  shall  cooperate  with  the  other  party in any such
efforts.

         Section  7.05 Export  Controls.  The  parties  agree to comply with the
United  States laws and  regulations  governing  exports and  re-exports  of the
Compound,  intermediates  thereof,  Products,  Development  Program  Technology,
Agouron  Technology,  Roche  Technology,  or any other  technology  or  software
developed or disclosed as a result of this  Agreement.  The parties  acknowledge
that any performance  under this Agreement is subject to any restrictions  which
may be imposed by the United States laws and regulations  governing  exports and
re-exports.  Each party  agrees to provide the other  party with any  reasonable
assistance,  including  written  assurances which may be required by a competent
governmental  authority and by applicable laws and regulations as a precondition
for any  disclosure of technology or software by the other party under the terms
of  this  Agreement.   The  obligations  of  this  Section  7.05  shall  survive
termination or expiration of this Agreement.

                     ARTICLE VIII - DISCLOSURE OF AGREEMENT

         Section  8.01  Disclosure  of  Agreement.  Except  as  agreed to by the
parties,  neither  Agouron nor Roche shall release any  information to any third
party  with  respect  to any of the terms of this  Agreement  without  the prior
written consent of the other,  which consent will not  unreasonably be withheld.
This prohibition  includes,  but is not limited to, press releases,  educational
and  scientific  conferences,  promotional  materials and  discussions  with the
media. If a party  determines that it is required by law to release  information
to any third party  regarding the terms of this  Agreement,  it shall notify the
other party of this fact prior to releasing the  information.  The notice to the
other party shall include the text of the information  proposed for release. The
other party shall have the right to confer with the  notifying  party  regarding
the necessity for the  disclosure and the text of the  information  proposed for
release.  Notwithstanding  the preceding,  Roche and Agouron shall each have the
right to disclose  the terms of this  Agreement  to persons it proposes to enter
into business relationships with, if such persons are subject to confidentiality
and use  obligations  equivalent  to those  applicable to the  disclosing  party
hereunder.

                         ARTICLE IX - GENERAL PROVISIONS

         Section 9.01 No Implied Licenses. Only the licenses granted pursuant to
the express terms of this Agreement  shall be of any legal force and effect.  No
license rights shall be created by implication or estoppel.

         Section  9.02 No Waiver.  Any  failure by a party to enforce  any right
which it may have  hereunder  in any  instance  shall not be deemed to waive any
right which it or the other party may have in any other instance with respect to
any provision of this  Agreement,  including the provision  which such party has
failed to enforce.

                                       44
<PAGE>

         Section  9.03  Severability;  Government  Acts.  In the event  that any
provision of this  Agreement is judicially  determined to be  unenforceable,  in
part or in whole,  with regard to any or all of the countries in the  Territory,
the  remaining  provisions  or  portions  of this  Agreement  shall be valid and
binding to the  fullest  extent  possible,  and the  parties  shall  endeavor to
negotiate  additional  terms,  as  feasible,  in a timely  manner so as to fully
effectuate  the  original  intent of the  parties to the extent  possible in the
applicable countries.  In the event that any act, regulation,  directive, or law
of a  country,  including  its  departments,  agencies  or courts,  should  make
impossible or prohibit, restrain, modify or limit any material act or obligation
of a  party  under  this  Agreement  and,  if any  party  to this  Agreement  is
materially  adversely affected thereby,  the parties shall attempt in good faith
to  negotiate a lawful and  enforceable  modification  to this  Agreement  which
substantially  eliminates the material adverse effect;  provided,  that, failing
any  agreement in that regard,  the party who is materially  adversely  affected
shall have the right,  at its option,  to suspend or terminate this Agreement as
to such country.

         Section 9.04 Ambiguities.  Ambiguities, if any, in this Agreement shall
not be construed against any party, irrespective of which party may be deemed to
have authored the ambiguous provision.

         Section  9.05  Notification  of  Authorities.  After  execution of this
Agreement,  to the extent  required by law,  Agouron,  after  consultation  with
Roche, shall notify the appropriate United States authorities about the terms of
this  Agreement and Roche,  after  consultation  with Agouron,  shall notify the
appropriate  European and other  authorities  about the terms of this Agreement.
The parties  shall keep each other fully  advised of the status and  progress of
the notification procedures.

         Section  9.06 No  Agency.  Agouron  and Roche  shall have the status of
independent contractors under this Agreement and nothing in this Agreement shall
be  construed  as an  authorization  of  either  party to act as an agent of the
other.

         Section 9.07 Captions;  Number;  Official Language. The captions of the
Articles  and  Sections  of this  Agreement  are  for  general  information  and
reference  only, and this Agreement  shall not be construed by reference to such
captions.  Where applicable in this Agreement,  the singular includes the plural
and vice  versa.  To the extent  appropriate,  the  meaning of terms whose first
letters  are  capitalized,  but which are  variations  of terms that are defined
elsewhere  in this  Agreement,  shall each have the same  meaning as the defined
term (e.g.,  "Co-Promoting" and "Co-Promotional"  shall have the same meaning as
the defined term "Co-Promote," to the extent appropriate).  English shall be the
official  language of this  Agreement  and any license  agreement  provided  for
hereunder,  and all communications between the parties hereto shall be conducted
in that language.

         Section 9.08 Force  Majeure.  Neither party shall be responsible to the
other party for any failure,  delay or interruption in the performance of any of
its obligations  under this Agreement if such failure,  delay or interruption is
caused by any act of God,  earthquake,  fire,  casualty,  flood, war,  epidemic,
riot,  insurrection,  or  any  act,  exercise,  assertion  or  requirement  of 

                                       45
<PAGE>

a governmental  authority,  or other cause beyond the reasonable  control of the
party  affected if the party  affected shall have used its best efforts to avoid
such  occurrence.  If either party  believes that the  performance of any of its
obligations  under this  Agreement will be delayed or interrupted as a result of
any of the reasons  stated in this Section 9.08 and provided  such party is able
to do so,  such party  shall  promptly  notify the other  party of such delay or
interruption and the cause therefor, and shall provide such other party with its
estimate of when the performance of its obligations  will  recommence.  When the
party affected is able to recommence the  performance of obligations  delayed or
interrupted  as a result of any of the reasons  stated in this Section  9.08, it
shall so notify  the other  party  and,  except as  otherwise  provided  in this
Agreement, it shall promptly resume the performance of such obligations.

         Section 9.09  Amendment.  This  Agreement,  including the  Attachments,
Exhibits,  Schedules  and  Appendices,  constitutes  the full  agreement  of the
parties with respect to the subject matter of this Agreement,  and  incorporates
any prior  discussions  between them with respect to such subject matter. In the
event of any inconsistency between this Agreement and the LOI, including Exhibit
A  thereto,  the  terms of this  Agreement  shall  govern  the  development  and
commercialization of Products. This Agreement, including the attachments hereto,
shall  not  be  amended,  supplemented  or  otherwise  modified,  except  by  an
instrument in writing signed by duly authorized officers of the parties.

         Section 9.10  Applicable Law. This Agreement shall be construed and the
rights of the parties shall be  determined  in  accordance  with the laws of the
United States and the State of California, without regard to its conflict of law
provisions.

         Section  9.11  Notices.  Any notice  required or  permitted to be given
under this Agreement shall be in writing and shall be given in person, delivered
by recognized overnight delivery service,  sent by mail (certified or registered
or air mail for addresses  outside of the  continental  U.S.), or by telefax (or
other similar means of electronic communication),  whose receipt is confirmed by
confirming  telefax,  and  addressed,  in the  case  of  Agouron,  to  the  Vice
President,  Commercial Affairs (with a copy to the Legal Department) and, in the
case of  Roche,  to the Head of the  Pharma  Division  (with a copy to the Legal
Department),  at the addresses shown at the beginning of this Agreement, or such
other  person  and/or  address  as may have been  furnished  in  writing  to the
notifying party in accordance  with the provisions of this Section 9.11.  Except
as otherwise  provided  herein,  any notice shall be deemed  delivered  upon the
earlier of: (i) actual  receipt;  (ii) two (2) business  days after  delivery to
such recognized  overnight delivery service;  (iii) five (5) business days after
deposit in the mail; or (iv) the date of receipt of the confirming telefax.

         Section 9.12  Assignment.  This  Agreement  shall not be  assignable by
either party,  except to an Affiliate,  without the prior written consent of the
other party,  which consent may be withheld at the sole  discretion of the other
party. Any such assignment  without the prior written consent of the other party
shall be void.  If this  Agreement is assigned to an  Affiliate,  the  assigning
party shall still be responsible  for all of the  obligations  specified in this
Agreement with respect to the assigning party. Notwithstanding the preceding, in
the event of: (i) a sale or transfer of all or  substantially  all of assignor's
assets;  or (ii) the merger or  consolidation  of 


                                       46
<PAGE>

assignor  with  another  company,  this  Agreement  shall be  assignable  to the
transferee or successor company.

         Section 9.13      Succession.  This Agreement  shall be binding upon 
all successors in interest,  assigns, trustees and other legal representatives 
of the parties.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement, in
triplicate originals, by their respective officers thereunto duly authorized, as
of the day and year hereinabove written.

F. HOFFMANN-LA ROCHE LTD               AGOURON PHARMACEUTICALS, INC.


By:      /s/ W. Henrich                By:      /s/ Gary Friedman, Esq.
Name:    W. Henrich                    Name:    Gary Friedman, Esq.
Title:   Senior Vice President         Title:   V. P. & General Counsel

By:      /s/ J.T. Arnold               By:      /s/ R. Kent Snyder
Name:    J.T. Arnold                   Name:    R. Kent Snyder
Title:   Authorized Signatory          Title:   V.P., Commercial Affairs


HOFFMANN-LA ROCHE INC.


By:      /s/ Stephen G. Sudouan
Name:    Stephen G. Sudouan
Title:   Sr. V.P., Pharmaceuticals

By:      /s/ William H. Epstein
Name:    William H. Epstein
Title:   Assistant Secretary




                                       47
<PAGE>



                                                              
                                   SCHEDULE 1

                              AGOURON PATENT RIGHTS

*












                                      S1-1
<PAGE>



                                    EXHIBIT 1

           INITIAL DEVELOPMENT PLAN FOR THYMITAQ(TM) DEVELOPMENT PROGRAM

*





*

*



*



*

*







*


*




*


                                      E1-1
<PAGE>

*


*



*





*



*

*




*

*



*


*



*

                                      E1-2
<PAGE>

*



*


*




*


*




*

*



*

*

*

*




*


                                      E1-3
<PAGE>

*





*




*



*




*



*



*




*




*

                                      E1-4
<PAGE>

*

*




*



*


                                      E1-5
<PAGE>



                              SCHEDULE 1 TO EXHIBIT
                    THYMITAQ(TM) DEVELOPMENT TIMELINE - IV/PO

                                       *

                                    E1-S1-1
<PAGE>



                              SCHEDULE 1 TO EXHIBIT
                    THYMITAQ(TM) DEVELOPMENT TIMELINE - IV/PO

*


                                    E1-S1-2
<PAGE>




                                    EXHIBIT 2

               INITIAL DEVELOPMENT BUDGET FOR DEVELOPMENT PROGRAM


                                      E2-1
<PAGE>


                              EXHIBIT 2 (continued)

           INITIAL DEVELOPMENT BUDGET FOR THYMITAQ DEVELOPMENT PROGRAM

*

                                      E2-2
<PAGE>




                                  ATTACHMENT 1

                 DEVELOPMENT COSTS AND REIMBURSEMENT PROCEDURES

The purpose of this Attachment is to define  Development  Costs, and to describe
and define a methodology to fund and reimburse such Development Costs.

                                DEVELOPMENT COSTS

Development Costs means the costs of *
                                                                       
specifically  incurred to further the  Development  Program.  The calculation of
Development Costs shall take into consideration the following:

1.       The cost of development personnel charging the Development Program 
         shall be calculated using a *
                                                                                
         Aggregate *         shall be calculated by applying an agreed to *

                                              The *          shall include the *
                                                                                
         Such costs would include, but not be limited to, the following:  *

                                                                              
         The *
         does not include any of the direct  charges  included in  Paragraph 2 
         below.  * charging the  Development  Program  shall  generally  include
         staff from the following disciplines:
         *

                                                       Both parties shall 
         utilize the same *                   on a *                            
         basis.
         The initial *               for the *
                                                                                
         This *             shall be  *
                            Such adjusted rate may be compared to Agouron's 
         anticipated *
                             To   the   extent   there   are   any   significant
         differences, the parties shall discuss the need for any revisions to 
         such rate.

2.       Third party costs shall  consist of  specifically  identifiable  
         contract  services or  materials  which are  necessary  to  supplement 
         the  development capabilities  of either  Roche or Agouron,  or  
         otherwise  required in the  Development  Program.  Such costs shall  
         include,  but not be limited to, the following costs and services:  *




                                       A1-1
<PAGE>





                                                                         All
such  third  party  costs  shall be  charged  to the  Development  Program  when
incurred.
         Patent and Trademark  costs shall not be included in Development  Costs
and shall be identified and billed separately.

                                  REIMBURSEMENT

Estimated  Development  Costs shall be * and comply with the following terms and
conditions:

1.       *                                                               Agouron
         shall invoice  Roche for 80% of its  estimated  Development  Costs
         for such quarter, and Roche shall invoice Agouron for 20% of its 
         estimated Development Costs for such quarter.  Such estimated 
         Development Costs *

                                                                                
         shall be based on the *
         as such development budget is revised and updated pursuant to the 
         provisions of Section 4.02(f).  A party's share of Development Costs in
         a *


2.       *
                    during which the parties have  incurred  Development  Costs,
         each party shall furnish and deliver to the other party a full and true
         accounting of its Development  Costs for such semi-annual  period.  The
         reporting party's  Development Costs for such semi-annual  period shall
         be  reviewed  and signed by an  appropriate  financial  employee of the
         reporting party.

3.       *








4.       If a party in good faith disputes the correctness of a portion of the 
         other party's accounting, the party *



                                       A1-2
<PAGE>

                                                                         The 
         parties agree to use their best faith efforts to resolve any disputes  
         concerning the correctness of Development Costs as soon as possible.

5.       Any  payments  due  pursuant to the terms of Section  5.02 that are not
         paid on or before the date such payments are due shall bear interest at
         the lower of: (i) the average one month London Interbank Offered Rates,
         as reported by Datastream from time to time, plus 100 basis points;  or
         (ii) the highest interest rate permitted by applicable law,  calculated
         on the number of days in each month that such payment is delinquent.

6.       Development  Costs invoices  shall be stated in United States  dollars.
         Payment of  Development  Costs shall be made in United States  dollars.
         Any Development  Costs which are incurred  outside of the United States
         shall be  converted  to United  States  dollars  using  the  procedures
         described in Section 5.05.

                                      A1-3
<PAGE>

                           SCHEDULE 1 TO ATTACHMENT 1

                                 AGOURON / ROCHE
                        DEVELOPMENT PROGRAM EXPENDITURES
                                        *

<TABLE>
<CAPTION>

INTERNAL STAFF COSTS:
                                                       Current Period              Cumulative
<S>                                                    <C>                       <C>    

*                                                       $ x.xx                    $ y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
                                                          ----                      ----

*                                                       xxx.xx                    yyy.yy

*                                                         x.xx

*                                                     $ xxx.xx                  $ yyy.yy
                                                      --------                  --------


OUTSIDE SERVICES:
                                                       Current Period              Cumulative
<S>                                                    <C>                        <C>  

         *                                              $ x.xx                    $ y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
         *                                                x.xx                      y.yy
                                                          ----                      ----

Total Outside Services $ xxx.xx                       $ yyy.yy
                       --------                       --------


TOTAL DEVELOPMENT COSTS                             $ x,xxx.xx                $ y,yyy.yy
                                                    ==========                ==========


<FN>
NOTE:         To the extent practicable, actual costs shall be presented in the same detail as that shown in the summary Development
              Program budget in Exhibit 2.
</FN>
</TABLE>

                                    A1-S1-1
<PAGE>


                           SCHEDULE 2 TO ATTACHMENT 1

                        AGOURON DEVELOPMENT COST INVOICE
                                 MONTH 1X, 199X


<TABLE>
<CAPTION>
*                                                 *                                             Total
<S>                                              <C>                                           <C>  

1.       *                                        $                                            $
                                                  ===========                                  =======

2.       *
                                                  $                                            $
                                                  ===========                                  ========


*2                                                *                      *                      Total

3.       *                                        $                      $                     $
                                                  ============           ============          ========

4.       *                                        $                      $                     $
                                                  ============           ============          ========

5.       *                                        $                      $                     $
                                                  ============           ============          ========

6.       *
                                                  $                      $                     $
                                                  ============           ===========           ========


*                                                 $                      $                     $
                                                  ============           ============          ========
*

- ----------
2 *
3 *

</TABLE>
                                    A1-S2-1
<PAGE>


                           SCHEDULE 3 TO ATTACHMENT 1

                         ROCHE DEVELOPMENT COST INVOICE
                                        *


<TABLE>
<CAPTION>
*                                                 *                                             Total
<S>                                              <C>                                           <C>  

1.       *                                        $                                            $
                                                  ===========                                  =======

2.       *
                                                  $                                            $
                                                  ===========                                  ========


*2                                                *                      *                      Total

3.       *                                        $                      $                     $
                                                  ============           ============          ========

4.       *                                        $                      $                     $
                                                  ============           ============          ========

5.       *                                        $                      $                     $
                                                  ============           ============          ========

6.       *
                                                  $                      $                     $
                                                  ============           ===========           ========


*                                                 $                      $                     $
                                                  ============           ============          ========
*


- ----------
1 *
2 *

</TABLE>
                                    A1-S2-1
<PAGE>


                                  ATTACHMENT 2

                          ACCOUNTING TERMS/DEFINITIONS

All of the accounting  terms used in this Attachment 2, if identified by the use
of capitalization of the first letter of each word, shall have the same meanings
described in the Definitions Section below.

                 ACCOUNTING TERMS AND PROFIT SHARING METHODOLOGY

Profits and Losses  earned or incurred  during the fiscal year of the  Marketing
Company from the sales of Products  arising out of the  Development  Program for
cancer  indications in countries located in the North American  Territory and/or
the  European  Co-Promotion  Countries  shall be  shared by the  parties  if the
parties  are  Co-Promoting  Products  in such  countries.  The  purpose  of this
Attachment  2 is to describe and define the  methodologies  used to achieve such
sharing of Profits and Losses.

The Marketing Company shall be responsible for the *




                        The non-Marketing Company shall be responsible for the *


Profits and Losses resulting from North American  Territory sales and from sales
in the European  Co-Promotion  Countries  shall be  calculated  in United States
dollars.  Payment  of  Profits  generated  by  the  Co-Promotion  of a  Product,
Allowable  Expenses  and  remittance  of Losses  shall be made in United  States
dollars.  The conversion of non-United States dollar currencies to United States
dollars shall be made in  accordance  with the  procedures  set forth in Section
5.05.

The Global Joint Finance  Committee (or a local project team  established by the
Global Joint Finance Committee) shall, for each Co-Promotion Country, *



Allowable Expenses will be charged to the Product *

           For that portion of *



                                       A2-1
<PAGE>

                                   DEFINITIONS

1.       "Adjusted Gross Sales" shall have the meaning set forth in Section 
1.21.

2.       "Allowable Expenses" shall include the following internal and external 
expenses incurred in the commercialization of Products:  *







3.       "Cost of Goods Sold" shall mean the *















4.       "Distribution Expenses," with the exception of *













                                       A2-2
<PAGE>

5.       "General and Administrative Expenses," *
















6.       "Marketing, Advertising and Education Expenses" shall mean the *











         (a)      *












                                       A2-3
<PAGE>

         (b)      *















         (c)      *







7.       "Premarketing Expenses" shall mean *






8.       "Profits and Losses" *





         (a)      *


         (b)      *


                                       A2-4
<PAGE>

9.       "Selling and Promotion Expenses" shall mean *






         (a)      *


























         (b)      *








                                       A2-5
<PAGE>


10.      *



                                      A2-6
<PAGE>

                                  ATTACHMENT 3

                      PRODUCT MANUFACTURING SPECIFICATIONS


          THE TERMS OF THE PRODUCT MANUFACTURING SPECIFICATIONS WILL BE
                     AGREED UPON PRIOR TO COMMERCIALIZATION



                                      A3-1
<PAGE>


                                  ATTACHMENT 4

                           TRADEMARK LICENSE AGREEMENT

This  Trademark  License,  effective  as of June 19,  1996,  is between  Agouron
Pharmaceuticals,  Inc., a corporation duly organized and existing under the laws
of the state of California,  having a principal place of business at 10350 North
Torrey Pines Road, La Jolla,  California,  United States of America (hereinafter
referred to as "Agouron,"  the first  party),  and F.  Hoffmann-La  Roche Ltd, a
corporation  duly organized and existing under the laws of  Switzerland,  having
its principal place of business at CH-4002-Basel,  Switzerland,  and Hoffmann-La
Roche Inc., a  corporation  duly  organized  and existing  under the laws of the
state of New  Jersey,  having a principal  place of  business  at 340  Kingsland
Street,  Nutley, New Jersey, United States of America (hereinafter  collectively
referred  to as "Roche,"  the second  party).  Agouron  and Roche are  sometimes
hereinafter  each  referred  to as a  party  (collectively  "parties")  to  this
Trademark License.

(Terms containing an initial capitalized letter,  except as explicitly otherwise
indicated,  shall  have the  meanings  stated in the D&L  Agreement,  as defined
below.)

                                   BACKGROUND

Agouron and Roche entered into a THYMITAQ(TM)  Development and License Agreement
dated June 19, 1996. The THYMITAQ  Development and License Agreement,  as now or
as subsequently amended, is hereinafter referred to as the "D&L Agreement."

The parties have conducted collaborative  development and commercialization
activities  for the cancer  inhibitor  known as  "AG337" * 

pursuant  to the terms of the D&L Agreement.

The D&L Agreement provides that a form trademark license shall be agreed upon by
the parties and attached to the D&L Agreement as Attachment 4. The D&L Agreement
also contains the following  provisions  concerning ownership and utilization of
Trademarks:

                  Section 1.31  "Trademark(s)"  means any trademark selected and
         owned by a party and  registered  (or applied  for) by such party,  its
         Affiliate(s) and  sublicensee(s) in the Territory for use in connection
         with the marketing of Products.  The definition of  Trademark(s)  shall
         not refer to trade names used by a party to designate  the name of such
         party.

                                       A4-1
<PAGE>

                  Section 2.01      License Grants. . . .

                                      * * *

                  (k)     *



















                  Section 3.03      Trademarks.  *


















                                       A4-2
<PAGE>
















                  Section 4.03      Marketing. . . .

                                      * * *

                  (g)     It is the intent of the parties that *
                                                                       
         arising  out of the  Development  Program  for cancer  indications
         wherever possible throughout the Territory.  The parties acknowledge 
         their intention to *
                                                                               
         arising out of the Development  Program for cancer  indications
         wherever possible.  The parties also acknowledge *
                                                                    arising out 
         of the Development Program for cancer indications wherever possible.

One or both of the parties is the owner(s) of the THYMITAQ Trademark, in certain
countries of the Territory.

The parties  intend to use the  THYMITAQ  Trademark,  including  its  associated
non-English translations  (hereinafter collectively referred to as the "THYMITAQ
Trademark"),  only  in  connection  with  the  marketing  of  AG337  for  cancer
indications.

NOW THEREFORE, in accordance with the provisions of the D&L Agreement,  for good
and valuable consideration, the parties agree as follows:

                                TRADEMARK LICENSE

          1. Under the provisions of the D&L Agreement, as more specifically set
         forth above,  each party granted to the other party, its Affiliates and
         sublicensees  a  non-exclusive   right  to  use  the  granting  party's
         Trademark(s)  in the Territory in the marketing of the Compound  and/or
         Products arising out of the Development Program.

                                       A4-3
<PAGE>

2.       Products marketed using the THYMITAQ  Trademark shall be manufactured  
         strictly in accordance with applicable  governmental  statutes,  
         regulations or directives.

3.       The licensed user of the THYMITAQ Trademark shall comply with all 
         applicable governmental statutes, regulations or directives.

4.       The licensed user of the THYMITAQ  Trademark shall not use the THYMITAQ
         Trademark  in a manner  which is  deceptive,  or which  would bring the
         THYMITAQ  Trademark,  the Product or the other party,  into  disrepute.
         Each party shall use the THYMITAQ  Trademark,  including its associated
         non-English translations, *




5.       Pursuant to the terms of the D&L  Agreement,  Agouron and Roche shall 
         share  obligations  and  responsibilities  related to  Trademark(s).  
         Provided a party fulfills its obligations and responsibilities related 
         to Trademark(s), and subject to the terms of the D&L Agreement,
         *



6.       Each party shall,  upon  learning  thereof,  promptly  notify the other
         party in writing of any  infringement  by a third party of the parties'
         rights in the  THYMITAQ  Trademark,  or of any claim or suit by a third
         party that the use of the  THYMITAQ  Trademark  infringes  or otherwise
         violates the rights of a third party.  The parties  shall  cooperate in
         taking  commercially  reasonable  legal actions to protect the parties'
         rights in the THYMITAQ  Trademark  and/or to contest a claim by a third
         party that the use of the  THYMITAQ  Trademark  infringes  or otherwise
         violates any rights of a third party. *





7.       Only  the  licenses  granted  pursuant  to the  express  terms  of this
         Trademark License and the D&L Agreement shall be of any legal force and
         effect. No license rights shall be created by implication or estoppel.

8.       This Trademark License shall terminate in accordance with the 
         provisions of the D&L Agreement.

9.       Any  failure  by either  party to enforce  any right  which it may have
         hereunder in any instance  shall not be deemed to waive any right which
         it or the other party may have in 

                                       A4-4
<PAGE>

         any other  instance with respect to any  provisions of this  Trademark 
         License,including the provision which such party has failed to enforce.

10.      In the event that any provision of this Trademark License is judicially
         determined  to be  unenforceable,  in whole or in part,  the  remaining
         provisions  or  portions  thereof  shall be valid  and  binding  to the
         fullest  extent  possible,  and the parties shall endeavor to negotiate
         additional  terms,  as  feasible,  in a  timely  manner  so as to fully
         effectuate the original intent of the parties,  to the extent possible.
         Ambiguities,  if any, in this Trademark  License shall not be construed
         against  any party,  irrespective  of which party may be deemed to have
         authored the ambiguous provision.

11.      This  Trademark  License  and the D&L  Agreement  constitute  the  full
         agreement  of the parties  with  respect to the subject  matter of this
         Trademark License,  and incorporate any prior discussions  between them
         with respect to such subject matter.  This Trademark  License shall not
         be amended, supplemented or otherwise modified, except by an instrument
         in writing signed by a duly authorized officer of each party.

12.      If there is a conflict between the terms of this Trademark License and
         the D&L Agreement, the terms of the D&L Agreement shall control.

13.      This  Trademark  License  shall be  construed,  and the  rights  of the
         parties shall be determined,  in accordance  with the laws of the state
         of California and the United States,  without regard to conflict of law
         provisions.

14.      Any notice  required or permitted to be given under this Trademark  
         License shall be in writing and shall be given in person,  delivered by
         recognized express delivery service,  sent by mail (certified or 
         registered, or air mail for addresses outside of the continental U.S.),
         or by telefax (or other similar means of electronic  communication)  
         whose receipt is confirmed by confirming  telefax,  and  addressed,  in
         the case of Agouron,  to the Vice President,  Commercial  Affairs (with
         a copy to the Legal  Department)  and, in the case of Roche,  to the 
         Head of the Pharma Division (with a copy to the Legal  Department) at 
         the respective  addresses shown at the beginning of the D&L Agreement, 
         or such other person and/or address as may have been furnished in 
         writing to the notifying party in accordance  with the provisions of 
         this  paragraph.  Except as otherwise  provided  herein,  any notice
         shall be deemed  delivered  upon the earlier of:  (i) actual  receipt; 
         (ii) two (2) business  days after  delivery to a recognized  express  
         delivery service; (iii) five (5) business days after deposit in the 
         mail; or (iv) the date of receipt of the confirming telefax.

15.      This Trademark License shall be binding upon all successors in 
         interest, assigns, trustees and other legal representatives of the 
         parties.

                                       A4-5
<PAGE>


IN WITNESS WHEREOF,  the parties hereto have executed this Trademark License, in
triplicate originals,  by their respective officers thereunto duly authorized as
of the day and year hereinabove written.

F. HOFFMANN-LA ROCHE LTD                  AGOURON PHARMACEUTICALS, INC.


By:                                       By:
Name:                                     Name:
Title:                                    Title:

By:                                       By:
Name:                                     Name:
Title:                                    Title:


HOFFMANN-LA ROCHE INC.


By:
Name:
Title:

By:
Name:
Title:

                                      A4-6


                  AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION

            STANDARD INDUSTRIAL/COMMERCIAL SINGLE-TENANT LEASE - NET
               (DO NOT USE THIS FORM FOR MULTI-TENANT BUILDINGS)

1.     Basic Provisions ("Basic Provisions")
     1.1 Parties: This Lease ("Lease"),  dated for reference purposes only, June
13,  1997,  is made by and between  LMC - Sorrento  Investment  Company,  LLC, a
California  limited  liability company  ("Lessor") and Agouron  Pharmaceuticals,
Inc., a California  corporation  ("Lessee"),  (collectively  the  "Parties,"  or
individually a "Party").
     1.2     Premises:  That certain real property, including all improvements 
therein or to be provided by Lessor under the terms of this Lease, and commonly 
known as 4215 Sorrento Valley Blvd., San Diego, California, located in the 
County of San Diego, State of California, and generally described as a Building 
which (when the improvements have been completed) shall consist of approximately
54,000 square feet (approximately 33,000 sq. ft. on first floor and 21,000 sq. 
ft. on second floor) on land having an area of approximately 150,718 sq. ft.
("Premises"). (See also Paragraph 2)
     1.3     Term:  See Addendum years and _____ months ("Original Term") 
commencing See Addendum ("Commencement Date") and ending See Addendum 
("Expiration Date").  (See also Paragraph 3) 
     1.4     Early Possession: N/A ("Early Possession Date").  
(See also Paragraphs 3.2 and 3.3)
     1.5     Base Rent:  $ See Addendum per month ("Base Rent"), payable on the
first day of each month commencing Rent Commencement Date (See Addendum) (See 
also Paragraph 4) 
/X/  If this box is checked, there are provisions in this Lease for the Base 
Rent to be adjusted.
     1.6     Base Rent Paid Upon Execution:  $ See Addendum as Base Rent for the
period See Addendum.
     1.7     Security Deposit:  $ See Addendum ("Security Deposit").  (See also 
Paragraph 5)
     1.8     Agreed Use:  Any use consistent with zoning of the Premises.  (See 
also Paragraph 6)
     1.9     Insuring Party.  Lessor is the "Insuring Party" unless otherwise 
stated herein.  (See also Paragraph 8)
     1.10     Real Estate Brokers:  (See also Paragraph 15)
          (a) Representation:  The following real estate brokers  (collectively,
the  "Brokers") and brokerage  relationships  exist in this  transaction  (check
applicable boxes):
/X/  CB  Commercial  represents  Lessor  exclusively  ("Lessor's  Broker");  /X/
Colliers/Illif/Thorn  represents Lessee exclusively  ("Lessee's Broker"); or / /
N/A represents both Lessor and Lessee ("Dual Agency").
          (b)     [No text]
     1.11     Guarantor.  The obligations of the Lessee under this Lease are to 
be guaranteed by N/A ("Guarantor").  (See also Paragraph 37)
     1.12  Addenda  and  Exhibits.  Attached  hereto is an  Addendum  or Addenda
consisting of Paragraphs 1.3 through 54 and Exhibits 1 (SNDA) and 2 (Site Plan),
all of which constitute a part of this Lease.
2.     Premises.
     2.1     Letting. Lessor hereby leases to Lessee, and Lessee hereby  leases 
from Lessor, the Premises, for the term, at the rental, and upon all of the 
terms, covenants and conditions set forth in this Lease and the Addendum. 
See Addendum, Sec. 1.5.3.
     2.2     Condition.  See Addendum, Sec. 51.
     2.3 Compliance.  Subject to the Addendum, Sec. 50. Lessor warrants that the
improvements  on the  Premises  comply with all  applicable  laws,  covenants or
restrictions of record, building codes,  regulations and ordinances ("Applicable
Requirements")  in effect on the Start Date. Said warranty does not apply to the
use to which  Lessee  will put the  Premises  or to any  Alterations  or Utility
Installations  (as defined in  Paragraph  7.3(a))  made or to be made by Lessee.
NOTE:  Lessee  is  responsible  for  determining  whether  or not the  zoning is
appropriate for Lessee's  intended use, and  acknowledges  that past uses of the
Premises  may no longer be  allowed.  If the  Premises  do not comply  with said
warranty, Lessor shall, except as otherwise provided,  promptly after receipt of
written notice from Lessee setting forth with  specificity the nature and extent
of such non-compliance, rectify the same at Lessor's expense. If Lessee does not
give Lessor written notice of a non-compliance with this warranty within six (6)
months following the Start Date, corrections of that non-compliance shall be the
obligation  of  Lessee at  Lessee's  sole cost and  expense.  If the  Applicable
Requirements  are  hereafter  changed (as opposed to being in  existence  at the
Start Date,  which is  addressed  in  Paragraph  6.2 (e) below) so as to require
during  the  term  of  this  Lease  the  construction  of an  addition  to or an
alteration of the Building,  the remediation of any Hazardous Substance,  or the
reinforcement  or  other  physical   modification  of  the  Building   ("Capital
Expenditure"),  Lessor  and  Lessee  shall  allocate  the  cost of such  work as
follows:

                           PAGE 1                     Initials /s/ GZ  /s/ LMC
                                                               ------  ------
<PAGE>


          (a) Subject to Paragraph  2.3(c) below,  if such Capital  Expenditures
are  required  as a result of the  specific  and unique use of the  Premises  by
Lessee as  compared  with uses by  tenants  in  general,  Lessee  shall be fully
responsible  for the  cost  thereof,  provided,  however  that  if such  Capital
Expenditure is required during the last two (2) years of this Lease and the cost
thereof  exceeds six (6) months' Base Rent,  Lessee may instead  terminate  this
Lease unless  Lessor  notifies  Lessee,  in writing,  within ten (10) days after
receipt of  Lessee's  termination  notice  that  Lessor  has  elected to pay the
difference  between  the actual  cost  thereof  and the amount  equal to six (6)
months' Base Rent. If Lessee elects termination,  Lessee shall immediately cease
the use of the Premises which requires such Capital  Expenditure  and deliver to
Lessor  written notice  specifying a termination  date at least ninety (90) days
thereafter.  Such termination date shall,  however,  in no event be earlier than
the last day that Lessee could legally utilize the Premises  without  commencing
such Capital Expenditure.
          (b) If such Capital  Expenditure is not the result of the specific and
unique use of the Premises by Lessee (such as,  governmentally  mandated seismic
modifications),  then Lessor and Lessee shall allocate the obligation to pay for
such costs pursuant to the provisions of Paragraph  7.1(c);  provided,  however,
that if such Capital  Expenditure  is required  during the last two years of the
Lease or if Lessor reasonably determines that it is not economically feasible to
pay its share thereof, Lessor shall have the option to terminate this Lease upon
ninety (90) days prior written notice to Lessee unless Lessee  notifies  Lessor,
in writing,  within ten (10) days after receipt of Lessor's  termination  notice
that Lessee will pay for such Capital  Expenditure.  If Lessor does not elect to
terminate, and fails to tender its share of any such Capital Expenditure, Lessee
may advance such funds and deduct same, with Interest,  from Rent until Lessor's
share of such  costs  have been  fully  paid.  If  Lessee  is unable to  finance
Lessor's  share, or if the balance of the Rent due and payable for the remainder
of this Lease is not  sufficient to fully  reimburse  Lessee on an offset bases,
Lessee  shall  have the right to  terminate  this Lease  upon  thirty  (30) days
written notice to Lessor.
          (c)  Notwithstanding  the above,  the  provisions  concerning  Capital
Expenditures are intended to apply only to  non-voluntary,  unexpected,  and new
Applicable  Requirements.  If the Capital  Expenditures are instead triggered by
Lessee as a result of an actual or proposed  change in use,  change in intensity
of use, or modification to the Premises then, and in that event, Lessee shall be
fully  responsible for the cost thereof,  and Lessee shall not have any right to
terminate this Lease.
     2.4  Acknowledgments.  Lessee acknowledges that: (a) it has been advised by
Lessor  and/or  Brokers to satisfy  itself with respect to the  condition of the
Premises  (including but not limited to the electrical,  HVAC and fire sprinkler
systems,  security,   environmental  aspects,  and  compliance  with  Applicable
Requirements),  and their  suitability for Lessee's intended use, (b) Lessee has
made such investigation as it deems necessary with reference to such matters and
assumes all  responsibility  therefor as the same relate to its occupancy of the
Premises,  and (c) neither Lessor,  Lessor's agents, nor any Broker has made any
oral or written representations or warranties with respect to said matters other
than as set forth in this Lease.  In addition,  Lessor  acknowledges  that:  (a)
Broker has made no representations,  promises or warranties  concerning Lessee's
ability to honor the Lease or suitability to occupy the Premises,  and (b) it is
Lessor's   responsibility   to  investigate  the  financial   capability  and/or
suitability of all proposed tenants.
     2.5     Lessee as Prior Owner/Occupant.  [No text.]
3.     Term.
     3.1     Term.  The Commencement Date, Expiration Date and Original Term of
this Lease are as specified in Paragraph 1.3.
     3.2 Early Possession.  If Lessee totally or partially occupies the Premises
prior to the  Commencement  Date, the obligation to pay Rent shall be abated for
the period of such early possession.  Any such early possession shall not affect
the Expiration Date.
     3.3     Delay in Possession.  See Addendum, Sec. 50, 51.
     3.4 Lessee Compliance. Lessor shall not be required to tender possession of
the Premises to Lessee  until Lessee  complies  with its  obligation  to provide
evidence of insurance (Paragraph 8.5). Pending delivery of such evidence, Lessee
shall be required to perform  all of its  obligations  under this Lease from and
after the Start Date,  including the payment of Rent,  notwithstanding  Lessor's
election to withhold  possession  pending receipt of such evidence of insurance.
Further,  if Lessee is  required  to perform  any other  conditions  prior to or
concurrent  with the Start Date, the Start Date shall occur but Lessor may elect
to withhold possession until such conditions are satisfied. 4. Rent.
     4.1     Rent Defined.  All monetary obligations of Lessee to Lessor under 
the terms of this Lease (except for the Security Deposit) are deemed to be rent 
("Rent").
     4.2 Payment. Lessee shall cause payment of Rent to be received by Lessor in
lawful money of the United States, without offset or deduction, on or before the
day on which it is due.  Rent for any period during the term hereof which is for
less than one (1) full  calendar  month shall be prorated  based upon the actual
number of days of said  month.  Payment  of Rent  shall be made to Lessor at its
address  stated herein or to such other persons or place as Lessor may from time
to time  designate in writing.  Acceptance  of a payment  which is less than the
amount then due shall not be a waiver of Lessor's  rights to the balance of such
Rent,  regardless of Lessor's  endorsement of any check so stating.  5. Security
Deposit.  Lessee shall  deposit with Lessor upon  execution  hereof the Security
Deposit as security for Lessee's  faithful  performance of its obligations under
this Lease. If Lessee fails to pay Rent, or otherwise Defaults under this Lease,
Lessor may use, apply or retain all or any portion of said Security  Deposit for
the payment of any amount due Lessor or to  reimburse or  compensate  Lessor for
any  liability,  expense,  loss or damage  which  Lessor  may suffer or incur by
reason  thereof.  If Lessor uses or applies all or any portion of said  Security
Deposit,  Lessee  shall  within ten (10) days  after  written  request  therefor
deposit  monies with Lessor  sufficient to restore said Security  Deposit to the
full amount  required by this  Lease.  Lessor  shall not be required to keep the
Security Deposit separate from its general  accounts.  Within fourteen (14) days
after the expiration or termination of this Lease, if Lessor elects to apply the
Security  Deposit only to unpaid Rent,  and  otherwise  within  thirty (30) days
after the Premises have been vacated pursuant to Paragraph 7.4(c) below,  Lessor
shall return that portion of the Security Deposit not used or applied by Lessor.
No part of the Security Deposit shall be considered to be held in trust, to bear
interest  or to be  prepayment  for any  monies to be paid by Lessee  under this
Lease. 6. Use.
     6.1 Use.  Lessee shall use and occupy the Premises only for the Agreed Use,
or any other legal use which is reasonably  comparable thereto, and for no other
purpose. Lessee shall not use or permit the use of the Premises in a manner that
is unlawful, creates damage, waste or a nuisance, or that disturbs owners and/or
occupants  of, or causes  damage to  neighboring  properties.  Lessor  shall not
unreasonably withhold

                              PAGE 2             Initials     /s/ GZ     /s/ LMC
                                                             --------   --------
<PAGE>

or delay its consent to any written  request  for a  modification  of the Agreed
Use,  so long as the same  will  not  impair  the  structural  integrity  of the
improvements on the Premises or the mechanical or electrical systems therein, is
not significantly more burdensome to the Premises.  If Lessor elects to withhold
consent,  Lessor  shall  within ten (10)  business  days after such request give
written  notification  of same,  which notice shall  include an  explanation  of
Lessor's objections to the change in use.
     6.2     Hazardous Substances.  See Addendum, Sec. 6.2.
          (e) Lessor  Indemnification.  Lessor and its  successors  and  assigns
shall indemnify,  defend,  reimburse and hold Lessee, its employees and lenders,
harmless from and against any and all  environmental  damages which existed as a
result of Hazardous  Substances on the Premises prior to the Start Date or which
are caused by the gross negligence, or intentional acts of Lessor, its agents or
employees.  Lessor's  obligations,  as  and  when  required  by  the  Applicable
Requirements,  shall include,  but not be limited to, the cost of investigation,
removal,  remediation,  restoration  and/or  abatement,  and shall  survive  the
expiration or termination of this Lease.
          (f)   Investigations   and  Remediations.   Lessor  shall  retain  the
responsibility and pay for any  investigations or remediation  measures required
by governmental  entities having  jurisdiction  with respect to the existence of
Hazardous  Substances  on the  Premises  prior to the Start Date.  Lessee  shall
cooperate  fully in any such  activities  at the  request of  Lessor,  including
allowing Lessor and Lessor's agents to have reasonable access to the Premises at
reasonable  times in order to carry  out  Lessor's  investigative  and  remedial
responsibilities.
           (g)  [No text.]
     6.3 Lessee's Compliance with Applicable  Requirements.  Except as otherwise
provided  in this  Lease,  Lessee,  shall,  at  Lessee's  sole  expense,  fully,
diligently  and in a  timely  manner,  materially  comply  with  all  Applicable
Requirements,  the requirements of any applicable fire insurance  underwriter or
rating bureau, and the  recommendations of Lessor's engineers and/or consultants
which  relate in any manner to the  Premises,  without  regard to  whether  said
requirements are now in effect or become effective after the Start Date.  Lessee
shall,  within ten (10) days after receipt of Lessor's written request,  provide
Lessor with copies of all permits  and other  documents,  and other  information
evidencing  Lessee's  compliance with any Applicable  Requirements  specified by
Lessor,  and shall  immediately  upon  receipt,  notify  Lessor in writing (with
copies of any documents  involved) of any  threatened  or actual claim,  notice,
citation, warning, complaint or report pertaining to or involving the failure of
Lessee or the Premises to comply with any Applicable Requirements.
     6.4     Inspection; Compliance.  See Addendum, Sec. 6.4.
7.     Maintenance; Repairs, Utility Installations; Trade Fixtures and 
Alterations.
     7.1     Lessee's Obligations.
          (a)  In General.  Subject to the provisions of Paragraph 6.2 
(Hazardous Substances), 2.3 (Compliance), 6.3 (Lessee's Compliance with 
Applicable Requirements), 7.2 (Lessor's Obligations), 9 (Damage or Destruction),
and 14 (Condemnation), Lessee shall, at Lessee's sole expense, keep

                              PAGE 3             Initials     /s/ GZ     /s/ LMC
                                                             --------   --------
<PAGE>

the Premises,  Utility  Installations,  and Alterations in good order, condition
and repair (whether or not the portion of the Premises requiring repairs, or the
means of repairing the same, are reasonably or readily accessible to Lessee, and
whether or not the need for such repairs occurs as a result of Lessee's use, any
prior use, the elements or the age of such portion of the Premises),  including,
but not  limited  to, all  equipment  or  facilities,  such as  plumbing,  HVAC,
electrical,  lighting  facilities,  boilers,  pressure vessels,  fire protection
system, fixtures, walls (interior and exterior),  foundations,  ceilings, roofs,
floors, windows, doors, plate glass, skylights, landscaping,  driveways, parking
lots,  fences,  retaining  walls,  signs,  sidewalks and parkways located in the
Premises.  Lessee, in keeping the Premises in good order,  condition and repair,
shall exercise and perform good maintenance  practices,  specifically  including
the procurement and maintenance of the service  contracts  required by Paragraph
7.1(b) below. Lessee's obligations shall include  restorations,  replacements or
renewals when necessary to keep the Premises and all  improvements  thereon or a
part thereof in good order,  condition and state of repair. Lessee shall, during
the term of this  Lease,  keep the  exterior  appearance  of the  Building  in a
first-class  condition  consistent with the exterior appearance of other similar
facilities  of  comparable  age  and  size  in  the  vicinity,  including,  when
necessary, the exterior repainting of the Building.
          (b) Service Contracts. Lessee shall, at Lessee's sole expense, procure
and maintain  contracts,  with copies to Lessor, in customary form and substance
for, and with contractors specializing and experienced in the maintenance of the
following equipment and improvements,  ("Basic  Elements"),  if any, as and when
installed on the Premises: (i) HVAC equipment, (ii) boiler and pressure vessels,
(iii) fire protection systems, (iv) landscaping and irrigation systems, (v) roof
covering  and  drains,  (vii)  clarifiers  and  (viii) any other  equipment,  if
reasonably required by Lessor.
          (c) Replacement.  Subject to Lessee's indemnification of Lessor as set
forth in  Paragraph  8.7  below,  and  without  relieving  Lessee  of  liability
resulting  from  Lessee's  failure to  exercise  and  perform  good  maintenance
practices,  if the  Basic  Elements  described  in  Paragraph  7.1(b)  cannot be
repaired  other  than  at a cost  which  is in  excess  of 50 % of the  cost  of
replacing  such Basic  Elements,  then such Basic  Elements shall be replaced by
Lessor,  and the cost thereof  shall be prorated  between the Parties and Lessee
shall only be obligated to pay,  each month during the  remainder of the term of
this  Lease,  on the date on which  Base  Rent is due,  an  amount  equal to the
product of multiplying the cost of such replacement by a fraction, the numerator
of which is one,  and the  denominator  of which is the  number of months of the
useful life of such  replacement  as such useful life is  specified  pursuant to
Federal income tax regulations or guidelines for depreciation thereof (including
interest on the unamortized  balance as is then  commercially  reasonable in the
judgment of Lessor's accountants), with Lessee reserving the right to prepay its
obligation at any time.
     7.2 Lessor's  Obligations.  Subject to the provisions of Paragraphs  7.1(c)
(Replacement),  6.2  (Hazardous  Substances),  2.3  (Compliance),  9 (Damage  or
Destruction)  and 14  (Condemnation),  it is intended by the Parties hereto that
Lessor have no obligation,  in any manner whatsoever, to repair and maintain the
Premises,  or the equipment therein, all of which obligations are intended to be
that of the Lessee.  It is the  intention  of the Parties that the terms of this
Lease govern the respective  obligations  of the Parties as to  maintenance  and
repair of the Premises,  and they expressly waive the benefit of any statute now
or hereafter in effect to the extent it is  inconsistent  with the terms of this
Lease.
     7.3     Utility Installations; Trade Fixtures; Alterations.
          (a) Definitions;  Consent Required.  The term "Utility  Installations"
refers to all floor and window coverings,  air lines,  power panels,  electrical
distribution,  security  and fire  protection  systems,  communication  systems,
lighting fixtures, HVAC equipment,  plumbing, and fencing in or on the Premises.
The term "Trade  Fixtures" shall mean Lessee's  machinery and equipment that can
be removed without doing material damage to the Premises. The term "Alterations"
shall  mean  any   modification   of  the   improvements,   other  than  Utility
Installations or Trade Fixtures,  whether by addition or deletion. "Lessee Owned
Alterations  and/or Utility  Installations"  are defined as  Alterations  and/or
Utility  Installations  made by Lessee that are not yet owned by Lessor pursuant
to  Paragraph  7.4(a).   Lessee  shall  not  make  any  Alterations  or  Utility
Installations to the Premises  without  Lessor's prior written  consent.  Lessee
may, however,  make non-structural  Utility Installations to the interior of the
Premises (excluding the roof) without such consent but upon notice to Lessor, as
long as they  are not  visible  from the  outside,  do not  involve  puncturing,
relocating  or  removing  the  roof  or any  existing  exterior  walls,  and the
cumulative   cost  thereof  during  this  Lease  as  extended  does  not  exceed
$100,000.00 in any one year.
          (b) Consent.  Any  Alterations  or Utility  Installations  that Lessee
shall  desire to make and which  require  the  consent  of the  Lessor  shall be
presented to Lessor in written form with detailed plans. Consent shall be deemed
conditioned upon Lessee's:  (i) acquiring all applicable  governmental  permits,
(ii)  furnishing  Lessor  with  copies  of both the  permits  and the  plans and
specifications  prior to commencement of the work, and (iii) compliance with all
conditions  of said permits and other  Applicable  Requirements  in a prompt and
expeditious manner. Any Alterations or Utility  Installations shall be performed
in a  workmanlike  manner  with  good and  sufficient  materials.  Lessee  shall
promptly upon completion furnish Lessor with as-built plans and  specifications.
For work which costs an amount equal to the greater of one month's Base Rent, or
$10,000,  Lessor may  condition  its consent  upon  Lessee  providing a lien and
completion  bond in an amount equal to one and one-half times the estimated cost
of such  Alteration  or Utility  Installation  and/or upon  Lessee's  posting an
additional Security Deposit with Lessor.
          (c) Indemnification.  Lessee shall pay, when due, all claims for labor
or materials  furnished or alleged to have been furnished to or for Lessee at or
for use on the Premises, which claims are or may be secured by any mechanic's or
materialmen's  lien against the Premises or any interest  therein.  Lessee shall
give Lessor not less than ten (10) days' notice prior to the commencement of any
work in, on or about  the  Premises,  and  Lessor  shall  have the right to post
notices of non-responsibility.  If Lessee shall contest the validity of any such
lien, claim or demand, then Lessee shall, at its sole expense defend and protect
itself,  Lessor and the Premises  against the same and shall pay and satisfy any
such  adverse  judgment  that may be  rendered  thereon  before the  enforcement
thereof.  If Lessor  shall  require,  Lessee  shall  furnish a surety bond in an
amount equal to one and one-half times the amount of such contested lien,  claim
or demand,  indemnifying Lessor against liability for the same. If Lessor elects
to participate in any such action, Lessee shall pay Lessor's attorneys' fees and
costs.
     7.4     Ownership; Removal; Surrender; and Restoration.
          (a) Ownership.  Alterations and Utility  Installations  made by Lessee
shall be the property of Lessee,  but considered a part of the Premises.  Lessee
Owned  Alterations  and  Utility  Installations  shall,  at  the  expiration  or
termination  of this Lease,  become the property of Lessor and be surrendered by
Lessee with the Premises. See Addendum, Section 50.4.3.
          (b)  Removal.  [No text.]
          (c) Surrender/Restoration.  Lessee shall surrender the Premises by the
Expiration Date or any earlier  termination  date, with all of the improvements,
parts and surfaces thereof broom clean and free of debris, and in good operating
order, condition and state of repair, ordinary wear and tear excepted. "Ordinary
wear and tear"  shall not include  any damage or  deterioration  that would gave
been  prevented  by good  maintenance  practice.  Lessee shall repair any damage
occasioned  by the  installation,  maintenance  or  removal  of Trade  Fixtures,
furnishings,  and  equipment  installed  by or  for  Lessee,  and  the  removal,
replacement, or remediation of any soil, material or groundwater contaminated by
Lessee.  Trade Fixtures shall remain the property of Lessee and may, at Lessor's
election,  be removed by Lessee.  See Addendum,  Section 50.4.3.  The failure by
Lessee to timely vacate the Premises  pursuant to this Paragraph  7.4(c) without
the express  written  consent of Lessor shall  constitute  a holdover  under the
provisions of Paragraph 26 below. 8. Insurance; Indemnity.
     8.1 Payment For  Insurance.  Lessee  shall pay for all  insurance  required
under  Paragraph 8 except to the extent of the cost  attributable  to  liability
insurance  carried by Lessor under Paragraph  8.2(b) in excess of $2,000,000 per
occurrence.  Premiums for policy periods commencing prior to or extending beyond
the Lease term shall be prorated to correspond to the Lease term.  Payment shall
be made by Lessee to Lessor  within  thirty  (30) days  following  receipt of an
invoice.
     8.2     Liability Insurance.
          (a)  Carried by Lessee.  Lessee shall obtain and keep in force a 
Commercial General Liability Policy of Insurance protecting Lessee

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and Lessor against claims for bodily injury, personal injury and property damage
based upon or arising out of the ownership, use, occupancy or maintenance of the
Premises  and all  areas  appurtenant  thereto.  Such  insurance  shall be on an
occurrence  bases  providing  single  limit  coverage in an amount not less than
$2,000,000 per occurrence  with an  "Additional  Insured-Managers  or Lessors of
Premises  Endorsement"  and contain the  "Amendment of the  Pollution  Exclusion
Endorsement"  for damage caused by heat, smoke or fumes from a hostile fire. The
Policy shall not contain any intra-insured exclusions as between insured persons
or  organizations,  but shall include coverage for liability  assumed under this
Lease  as an  "insured  contract"  for the  performance  of  Lessee's  indemnity
obligations  under this Lease. The limits of said insurance shall not,  however,
limit the liability of Lessee nor relieve  Lessee of any  obligation  hereunder.
All insurance  carried by Lessee shall be primary to and not  contributory  with
any similar  insurance  carried by Lessor,  whose  insurance shall be considered
excess insurance only.
          (b) Carried by Lessor.  Lessor shall maintain  liability  insurance as
described in Paragraph 8.2(a), in addition to, and not in lieu of, the insurance
required to be maintained by Lessee.  Lessee shall not be named as an additional
insured therein.
     8.3     Property Insurance - Building, Improvements and Rental Value.
          (a) Building  and  Improvements.  The Insuring  Party shall obtain and
keep in force a policy or policies in the name of Lessor,  with loss  payable to
Lessor and to any Lender insuring loss or damage to the Premises.  The amount of
such insurance shall be equal to the full replacement  cost of the Premises,  as
the same shall exist from time to time,  or the amount  required by any Lenders,
but in no event more than the  commercially  reasonable and available  insurable
value  thereof.  If  Lessor  is  the  Insuring  Party,  however,   Lessee  Owned
Alterations and Utility  Installations,  Trade Fixtures,  and Lessee's  personal
property  shall be insured by Lessee under  Paragraph 8.4 rather than by Lessor.
If the  coverage  is  available  and  commercially  appropriate,  such policy or
policies  shall  insure  against  all  risks of direct  physical  loss or damage
(except  the perils of flood  and/or  earthquake  unless  required by a Lender),
including  coverage for debris  removal and the  enforcement  of any  Applicable
Requirements requiring the upgrading, demolition,  reconstruction or replacement
of any portion of the Premises as the result of a covered  loss.  Said policy or
policies  shall  also  contain  an  agreed  valuation  provision  in lieu of any
coinsurance  clause,  waiver of  subrogation,  and  inflation  guard  protection
causing an increase in the annual property insurance coverage amount by a factor
of not less than the adjusted U.S.  Department of Labor Consumer Price Index for
All Urban  Consumers for the city nearest to where the Premises are located.  If
such insurance coverage has a deductible clause, the deductible amount shall not
exceed $10,000.00 per occurrence, and Lessee shall be liable for such deductible
amount in the event of an Insured Loss. See Addendum, Sec. 8.3.
          (b) Rental Value.  The Insuring Party shall obtain and keep in force a
policy or  policies  in the name of Lessor  with loss  payable to Lessor and any
Lender,  insuring  the loss of the full  Rent for one (1) year.  Said  insurance
shall  provide that in the event the Lease is terminated by reason of an insured
loss,  the period of indemnity  for such coverage  shall be extended  beyond the
date of the completion of repairs or replacement of the Premises, to provide for
one full  year's  loss of Rent from the date of any such  loss.  Said  insurance
shall contain an agreed valuation  provision in lieu of any coinsurance  clause,
and the amount of coverage  shall be adjusted  annually to reflect the projected
Rent otherwise payable by Lessee, for the next twelve (12) month period.  Lessee
shall be liable for any deductible amount in the event of such loss.
          (c) Adjacent Premises.  If the Premises are part of a larger building,
or of a group of buildings  owned by Lessor which are adjacent to the  Premises,
the Lessee shall pay for any increase in the premiums for the property insurance
of such  building or  buildings  if said  increase  is caused by Lessee's  acts,
omissions, use or occupancy of the Premises.
     8.4     Lessee's Property/Business Interruption Insurance.
          (a)  Property  Damage.  Lessee  shall  obtain and  maintain  insurance
coverage on all of Lessee's personal property,  Trade Fixtures, and Lessee Owned
Alterations and Utility Installations.  Such Insurance shall be full replacement
cost coverage with a deductible of not to exceed $10,000.00 per occurrence.  The
proceeds from any such insurance  shall be used by Lessee for the replacement of
personal  property,  Trade  Fixtures  and Lessee Owned  Alterations  and Utility
Installations.  Lessee  shall  provide  Lessor with written  evidence  that such
insurance is in force.
          (b)  Business Interruption.  [No text.]
          (c)  No   Representation  of  Adequate   Coverage.   Lessor  makes  no
representation  that the  limits or forms of  coverage  of  insurance  specified
herein  are  adequate  to  cover  Lessee's  property,   business  operations  or
obligations under this Lease.
     8.5 Insurance  Policies.  Insurance  required  herein shall be by companies
duly  licensed or admitted to transact  business in the state where the Premises
are located,  and  maintaining  during the policy term a "General  Policyholders
Rating"  of at least B+, V, as set forth in the most  current  issue of  "Best's
Insurance  Guide",  or such other rating as may be required by a Lender.  Lessee
shall  not do or permit  to be done  anything  which  invalidates  the  required
insurance  policies.  Lessee shall,  prior to the Start Date,  deliver to Lessor
certified  copies of policies of such insurance or  certificates  evidencing the
existence  and  amounts  of the  required  insurance.  No such  policy  shall be
cancelable  or subject  to  modification  except  after  thirty  (30) days prior
written notice to Lessor.  Lessee shall,  at least thirty (30) days prior to the
expiration  of such  policies,  furnish  Lessor  with  evidence  of  renewals or
"insurance  binders"  evidencing  renewal  thereof,  or Lessor  may  order  such
insurance  and charge the cost thereof to Lessee,  which amount shall be payable
by Lessee to Lessor upon demand.  Such policies  shall be for a term of at least
one year, or the length of the remaining term of this Lease,  whichever is less.
If either Party shall fail to procure and maintain the insurance  required to be
carried by it, the other Party may,  but shall not be required  to,  procure and
maintain the same. See Addendum Sec. 8.5.
     8.6     Waiver of Subrogation.  See Addendum.
     8.7  Indemnity.  Except for Lessor's  negligence,  Lessee shall  indemnify,
protect, defend and hold harmless the Premises,  Lessor and its agents, Lessor's
master or ground  lessor,  partners  and  Lenders,  from and against any and all
claims, loss of rents and/or damages,  liens, judgments,  penalties,  attorneys'
and consultants' fees, expenses and/or liabilities arising out of, involving, or
in connection with, the use and/or  occupancy of the Premises by Lessee.  If any
action or proceeding is brought against Lessor by reason of any of the foregoing
matters, Lessee shall upon notice defend the same at Lessee's expense by counsel
reasonably satisfactory to Lessor and Lessor shall cooperate with Lessee in such
defense.  Lessor need not have first paid any such claim in order to be defended
or indemnified.
     8.8     Exemption of Lessor from Liability.  [No text.]
9.     Damage or Destruction.
     9.1     Definitions.
          (a) "Premises  Partial Damage" shall mean damage or destruction to the
improvements  on the Premises,  other than Lessee Owned  Alterations and Utility
Installations,  which can  reasonably be repaired in six (6) months or less from
the date of the damage or  destruction.  Lessor shall  notify  Lessee in writing
within thirty (30) days from the date of the damage or destruction as to whether
or not the damage is Partial or Total.
          (b) "Premises Total  Destruction"  shall mean damage or destruction to
the Premises,  other than Lessee Owned  Alterations  and Utility  Installations,
which cannot  reasonably  be repaired in six (6) months or less from the date of
the damage or  destruction.  Lessor shall notify Lessee in writing within thirty
(30) days from the date of the  damage or  destruction  as to whether or not the
damage is Partial or Total.

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          (c) "Insured Loss" shall mean damage or destruction to improvements on
the Premises,  other than Lessee Owned Alterations and Utility Installations and
Trade  Fixtures,  which was  caused by an event  required  to be  covered by the
insurance described in Paragraph 8.3(a),  irrespective of any deductible amounts
of coverage limits involved.
          (d)  "Replacement  Cost"  shall mean the cost to repair or rebuild the
improvements  owned by Lessor at the time of the  occurrence to their  condition
existing  immediately prior thereto,  including  demolition,  debris removal and
upgrading  required by the  operation of  Applicable  Requirements,  and without
deduction for depreciation.
           (e)  "Hazardous  Substance  Condition"  shall mean the  occurrence or
discovery  of a  condition  involving  the  presence  of, or a  combination  by,
Hazardous  Substance  as  defined  in  Paragraph  6.2(a),  in,  on, or under the
Premises.
     9.2 Partial Damage - Insured Loss. If a Premises  Partial Damage that is an
Insured Loss occurs, then Lessor shall, at Lessor's expense,  repair such damage
(but not  Lessee's  Trade  Fixtures  or Lessee  Owned  Alterations  and  Utility
Installations)  as soon as reasonably  possible and this Lease shall continue in
full force and  effect;  provided,  however,  that  Lessee  shall,  at  Lessor's
election,  make the repair of any damage or destruction the total cost to repair
of  which  is  $10,000  or less,  and,  in such  event,  Lessor  shall  make any
applicable insurance proceeds available to Lessee on a reasonable bases for that
purpose.  Notwithstanding  the foregoing,  if the required  insurance was not in
force or the insurance  proceeds are not  sufficient to effect such repair,  the
Insuring Party shall promptly  contribute the shortage in proceeds (except as to
the  deductible  which  is  Lessee's  responsibility)  as and when  required  to
complete said repairs. In the event,  however, such shortage was due to the fact
that, by reason of the unique nature of the improvements,  full replacement cost
insurance coverage was not commercially  reasonable and available,  Lessor shall
have no  obligation  to pay for the shortage in  insurance  proceeds or to fully
restore the unique aspects of the Premises  unless Lessee  provides  Lessor with
the funds to cover same,  or adequate  assurance  thereof,  within ten (10) days
following  receipt of written notice of such shortage and request  therefor.  If
Lessor  receives said funds or adequate  assurance  thereof within said ten (10)
day period,  the party responsible for making the repairs shall complete them as
soon as  reasonably  possible  and this  Lease  shall  remain in full  force and
effect.  If such funds or assurance  are not received,  Lessor may  nevertheless
elect by written  notice to Lessee within ten (10) days  thereafter to: (i) make
such restoration and repair as is commercially reasonable with Lessor paying any
shortage in  proceeds,  in which case this Lease shall  remain in full force and
effect,  or have this Lease terminate thirty (30) days thereafter.  Lessee shall
not be entitled to  reimbursement  of any funds  contributed by Lessee to repair
any  such  damage  or  destruction.  Premises  Partial  Damage  due to  flood or
earthquake shall be subject to Paragraph 9.3,  notwithstanding that there may be
some insurance  coverage,  but the net proceeds of any such  insurance  shall be
made available for the repairs if made by either Party.
     9.3     Partial Damage - Uninsured Loss.  See Addendum, Section 9.3.
     9.4 Total  Destruction.  Notwithstanding  any other provision  hereof, if a
Premises Total  Destruction  occurs,  this Lease shall  terminate on the date of
such  Destruction.  If the  damage  or  destruction  was  caused  by  the  gross
negligence  or  willful  misconduct  of Lessee,  Lessor  shall have the right to
recover  Lessor's  damages from Lessee except as provided in the Addendum,  Sec.
8.6.
     9.5 Damage Near End of Term.  If at any time during the last six (6) months
of this  Lease  there is damage  for which  the cost to repair  exceeds  one (1)
month's Base Rent,  whether or not an Insured Loss,  Lessor may  terminate  this
Lease  effective sixty (60) days following the date of occurrence of such damage
by giving a written  termination  notice to Lessee within thirty (30) days after
the date of occurrence of such damage.  Notwithstanding the foregoing, if Lessee
at that time has an  exercisable  option to extend this Lease or to purchase the
Premises, then Lessee may preserve this Lease by, (a) exercising such option and
(b)  providing  Lessor with any  shortage in  insurance  proceeds  (or  adequate
assurance  thereof)  needed to make the  repairs on or before the earlier of (i)
the date which is ten days after  Lessee's  receipt of Lessor's  written  notice
purporting to terminate this Lease,  or (ii) the day prior to the date upon with
such option expires. If Lessee duly exercised such option during such period and
provides Lessor with funds (or adequate assurance thereof) to cover any shortage
in  insurance  proceeds,  Lessor  shall,  at  Lessor's  commercially  reasonable
expense,  repair such damage as soon as reasonably possible and this Lease shall
continue in full force and effect.  If Lessee fails to exercise  such option and
provide  such funds or  assurance  during  such  period,  then this Lease  shall
terminate on the date specified in the  termination  notice and Lessee's  option
shall be extinguished.
     9.6     Abatement of Rent; Lessee's Remedies.
          (a)  Abatement.  In the event of Premises  Partial  Damage or Premises
Total  Destruction  or a Hazardous  Substance  Condition for which Lessee is not
responsible under this Lease, the Rent payable by Lessee for the period required
for the repair,  remediation  or  restoration  of such damage shall be abated in
proportion to the degree to which Lessee's use of the Premises is impaired,  but
not to exceed the proceeds  received from the Rental Value insurance.  All other
obligations of Lessee  hereunder shall be performed by Lessee,  and Lessor shall
have no  liability  for any such  damage,  destruction,  remediation,  repair or
restoration except as provided herein.
          (b)  Remedies.  If Lessor  shall be obligated to repair or restore the
Premises and does not commence, in a substantial and meaningful way, such repair
or  restoration  within  ninety (90) days after such  obligation  shall  accrue,
Lessee may, at any time prior to the commencement of such repair or restoration,
give  written  notice to Lessor and to any  Lenders  of which  Lessee has actual
notice,  of Lessee's  election to  terminate  this Lease on a date not less than
sixty (60) days following the giving of such notice. If Lessee gives such notice
and such  repair  or  restoration  is not  commenced  within  thirty  (30)  days
thereafter,  this Lease shall terminate as of the date specified in said notice.
If the repair or  restoration  is commenced  within said thirty (30) days,  this
Lease shall continue in full force and effect.  "Commence" shall mean either the
unconditional  authorization  of the  preparation of the required  plans, or the
beginning of the actual work on the Premises, whichever first occurs.
     9.7  Termination-Advance  Payments. Upon termination of this Lease pursuant
to  Paragraph  6.2(g) or  Paragraph  9, an  equitable  adjustment  shall be made
concerning  advance Base Rent and any other  advance  payments made by Lessee to
Lessor. Lessor shall, in addition, return to Lessee so much of Lessee's Security
Deposit as has not been, or is not then required to be, used by Lessor.
     9.8 Waive  Statutes.  Lessor and Lessee  agree that the terms of this Lease
shall govern the effect of any damage to or  destruction  of the  Premises  with
respect to the  termination of this Lease and hereby waive the provisions of any
present or future statute to the extent inconsistent herewith.
10.     Real Property Taxes.
     10.1  Definition of "Real Property  Taxes." As used herein,  the term "Real
Property  Taxes" shall  include any form of  assessment;  real estate,  general,
special,  ordinary  or  extraordinary,   or  rental  levy  or  tax  (other  than
inheritance,  personal income or estate taxes); improvement bond; and/or license
fee imposed upon or levied against any legal or equitable  interest of Lessor in
the Premises, Lessor's right to other income therefrom, and/or Lessor's business
of leasing,  by any  authority  having the direct or  indirect  power to tax and
where the funds are generated with  reference to the Building  address and where
the proceeds so generated  are to be applied by the city,  county or other local
taxing  authority of a jurisdiction  within which the Premises are located.  The
term "Real Property Taxes" shall also include any tax, fee, levy,  assessment or
charge,  or any increase  therein,  imposed by reason of events occurring during
the term of this Lease,  including but not limited to, a change in the ownership
of the Premises.
     10.2
          (a)  Payment  of  Taxes.  Lessee  shall  pay the Real  Property  Taxes
applicable  to  the  Premises  commencing  on the  Rent  Commencement  Date  and
continuing  through the term of this Lease.  Subject to Paragraph  10.2(b),  all
such  payments  shall be made at least  ten (10) days  prior to any  delinquency
date. Lessee shall promptly furnish Lessor with satisfactory  evidence that such
taxes have been paid.  If any such taxes shall cover any period of time prior to
or after the expiration or

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termination  of this  Lease,  Lessee's  share of such taxes shall be prorated to
cover only that portion of the tax bill  applicable  to the period  during which
rent is due and Lessor shall  reimburse  Lessee for any  overpayment.  If Lessee
shall fail to pay any required Real Property Taxes,  Lessor shall have the right
to pay the same, and Lessee shall reimburse Lessor therefor upon demand.
          (b) Advance  Payment.  In the event Lessee incurs a late charge on any
Rent payment, Lessor may, at Lessor's option, estimate the current Real Property
Taxes,  and  require  that such  taxes be paid in  advance  to Lessor by Lessee,
either:  (I) in a lump sum amount equal to the installment  due, at least twenty
(20) days prior to the applicable  delinquency  date, or (ii) monthly in advance
with the payment of the Base Rent. If Lessor elects to require  payment  monthly
in advance,  the monthly  payment  shall be an amount equal to the amount of the
estimated  installment of taxes divided by the number of months remaining before
the month in which said installment becomes  delinquent.  When the actual amount
of the  applicable tax bill is known,  the amount of such equal monthly  advance
payments  shall be adjusted  as required to provide the funds  needed to pay the
applicable  taxes. If the amount collected by Lessor is insufficient to pay such
Real  Property  Taxes when due,  Lessee  shall pay  Lessor,  upon  demand,  such
additional  sums as are  necessary to pay such  obligations.  All moneys paid to
Lessor under this Paragraph may be intermingled  with other moneys of Lessor and
shall not bear interest.  In the event of a Breach by Lessee in the  performance
of its  obligations  under this Lease,  then any balance of funds paid to Lessor
under the provisions of this  Paragraph may at the option of Lessor,  be treated
as an additional Security Deposit. See Addendum.
     10.3  Joint  Assessment.  If the  Premises  are  not  separately  assessed,
Lessee's  liability shall be an equitable  proportion of the Real Property Taxes
for all of the land and  improvements  included within the tax parcel  assessed,
such  proportion to be  conclusively  determined  by Lessor from the  respective
valuations  assigned in the assessor's work sheets or such other  information as
may be reasonably available.
     10.4 Personal Property Taxes.  Lessee shall pay, prior to delinquency,  all
taxes  assessed  against  and levied  upon  Lessee  Owned  Alterations,  Utility
Installations,  Trade Fixtures, furnishings, equipment and all personal property
of Lessee.  When  possible,  Lessee shall cause such property to be assessed and
billed  separately  from the real  property of Lessor.  If any of Lessee's  said
personal  property shall be assessed with Lessor's real  property,  Lessee shall
pay Lessor the taxes  attributable  to  Lessee's  property  within ten (10) days
after  receipt  of  a  written  statement.  11.  Utilities.  Commencing  on  the
Commencement  Date,  Lessee shall pay for all water,  gas, heat,  light,  power,
telephone,  trash  disposal and other  utilities  and  services  supplied to the
Premises,  together  with  any  taxes  thereon.  If any  such  services  are not
separately metered to Lessee,  Lessee shall pay a reasonable  proportion,  to be
determined  by Lessor,  of all  charges  jointly  metered.  12.  Assignment  and
Subletting.
     12.1     Lessor's Consent Required.
          (a)  Lessee  shall not  voluntarily  or by  operation  of law  assign,
transfer, mortgage or encumber (collectively,  "assign or assignment") or sublet
all or any part of Lessee's  interest in this Lease or in the  Premises  without
Lessor's prior written consent which shall not be unreasonably withheld.
          (b) A change in the control of Lessee shall  constitute  an assignment
requiring consent.  The transfer,  on a cumulative bases, of twenty-five percent
(25%) or more of the  voting  control  of Lessee  shall  constitute  a change in
control for this purpose.
          (c) The  involvement  of Lessee or its assets in any  transaction,  or
series  of  transactions  (by  way  of  merger,  sale,  acquisition,  financing,
transfer, leveraged buy-out or otherwise), whether or not a formal assignment or
hypothecation  of this Lease or Lessee's  assets  occurs,  which results or will
result in a  reduction  of the Net Worth of  Lessee  by an amount  greater  than
twenty-five percent (25%) of such Net Worth as it was represented at the time of
the  execution  of this Lease or at the time of the most  recent  assignment  to
which  Lessor  has  consented,  or  as  it  exists  immediately  prior  to  said
transaction or transactions  constituting  such  reduction,  whichever was or is
greater,  shall be  considered  an  assignment of this Lease to which Lessor may
withhold its consent.  "Net Worth of Lessee"  shall mean the net worth of Lessee
(excluding any  guarantors)  established  under  generally  accepted  accounting
principles.
          (d) An assignment or subletting  without  consent  shall,  at Lessor's
option, be a Default curable after notice per Paragraph 13.1(c), or a noncurable
Breach without the necessity of any notice and grace period. If Lessor elects to
treat such unapproved  assignment or subletting as a noncurable  Breach,  Lessor
may terminate this Lease.
          (e) Lessee's  remedy for any breach of Paragraph  12.1 by Lessor shall
be limited to compensatory damages and/or injunctive relief.
     12.2     Terms and Conditions Applicable to Assignment and Subletting.
          (a) Regardless of Lessor's consent, any assignment or subletting shall
not: (i) be effective without the express written assumption by such assignee or
sublessee of the obligations of Lessee under this Lease,  (ii) release Lessee of
any obligations  hereunder,  or (iii) alter the primary  liability of Lessee for
the  payment  of Rent or for the  performance  of any  other  obligations  to be
performed by Lessee.
          (b) Lessor may accept Rent or performance of Lessee's obligations from
any person other than Lessee  pending  approval or disapproval of an assignment.
Neither  a delay in the  approval  or  disapproval  of such  assignment  nor the
acceptance  of Rent or  performance  shall  constitute  a waiver or  estoppel of
Lessor's right to exercise its remedies for Lessee's Default or Breach.
          (c)  Lessor's  consent  to any  assignment  or  subletting  shall  not
constitute a consent to any subsequent assignment or subletting.
          (d) In the  event of any  Default  or  Breach by  Lessee,  Lessor  may
proceed directly  against Lessee,  any Guarantors or anyone else responsible for
the performance of Lessee's obligations under this Lease, including any assignee
or  sublessee,  without first  exhausting  Lessor's  remedies  against any other
person or entity  responsible  therefore  to  Lessor,  or any  security  held by
Lessor.
          (e) Each request for consent to an assignment  or subletting  shall be
in writing,  accompanied by information relevant to Lessor's determination as to
the financial and operational responsibility and appropriateness of the proposed
assignee or  sublessee,  including  but not limited to the  intended  use and/or
required  modification of the Premises,  if any, Lessee agrees to provide Lessor
with  such  other  or  additional  information  and/or  documentation  as may be
reasonably requested.
          (f) Any assignee of, or sublessee  under,  this Lease shall, by reason
of accepting such  assignment or entering into such sublease,  be deemed to have
assumed and agreed to conform  and comply  with each and every  term,  covenant,
condition and obligation herein to be observed or performed by Lessee during the
term of said assignment or sublease, other than such obligations as are contrary
to or inconsistent  with provisions of an assignment or sublease to which Lessor
has specifically consented to in writing.
     12.3     Additional Terms and Conditions Applicable to Subletting.  The 
following terms and conditions shall apply to any subletting by Lessee of all or
any part of the Premises and shall be deemed included in all subleases under 
this Lease whether or not expressly incorporated therein:
          (a) Lessee  hereby  assigns  and  transfers  to Lessor all of Lessee's
interest in all Rent payable on any  sublease,  and Lessor may collect such Rent
and apply same toward Lessee's obligations under this Lease; provided,  however,
that until a Breach  shall occur in the  performance  of  Lessee's  obligations,
Lessee may collect said Rent.  Lessor  shall not, by reason of the  foregoing or
any  assignment of such  sublease,  nor by reason of the  collection of Rent, be
deemed  liable to the  sublessee for any failure of Lessee to perform and comply
with any of Lessee's  obligations to such sublessee.  Lessee hereby  irrevocably
authorizes and directs any such sublessee, upon receipt of a written notice from
Lessor stating that a Breach exists in the  performance of Lessee's  obligations
under  this  Lease,  to pay to Lessor  all Rent due and to become  due under the
sublease.  Sublessee  shall rely upon any such  notice from Lessor and shall pay
all Rents to Lessor  without  any  obligation  or right to inquire as to whether
such Breach exists, notwithstanding any claim from Lessee to the contrary.
          (b) In the event of a Breach by Lessee,  Lessor  may,  at its  option,
require sublessee to attorn to Lessor, in which event Lessor shall undertake the
obligations  of the sublessor  under such sublease from the time of the exercise
of said option to the expiration of such  sublease;  provided,  however,  Lessor
shall not be liable  for any  prepaid  rents or  security  deposit  paid by such
sublessee  to such  sublessor  or for any prior  Defaults  or  Breaches  of such
sublessor.

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          (c) Any matter requiring the consent of the sublessor under a sublease
shall also require the consent of Lessor.
          (d) No sublessee shall further assign or sublet all or any part of the
Premises without Lessor's prior written consent.
          (e)  Lessor shall deliver a copy of any notice of Default or Breach by
Lessee to the sublessee, who shall have the right to cure the Default of Lessee 
within the grace period, if any, specified in such notice. The sublessee shall 
have a right of reimbursement and offset from and against Lessee for any such 
Defaults cured by the sublessee.
13.     Default; Breach; Remedies.
     13.1 Default;  Breach. A "Default" is defined as a failure by the Lessee to
comply with or perform any of the terms,  covenants,  conditions  or rules under
this  Lease.  A  "Breach"  is defined  as the  occurrence  of one or more of the
following  Defaults,  and the failure of Lessee to cure such Default  within any
applicable grace period:
          (a) The  abandonment of the Premises;  or the vacating of the Premises
without  providing a  commercially  reasonable  level of security,  or where the
coverage of the property insurance  described in Paragraph 8.3 is jeopardized as
a result  thereof,  or  without  providing  reasonable  assurances  to  minimize
potential vandalism.
          (b) The  failure  of Lessee to make any  payment  of Rent or any other
monetary payment required to be made by Lessee  hereunder,  whether to Lessor or
to a third  party,  when due, to provide  reasonable  evidence of  insurance  or
surety bond, or to fulfill any  obligation  under this Lease which  endangers or
threatens life or property,  where such failure  continues for a period of three
(3) business days following written notice to Lessee.
          (c) The failure by Lessee to provide (i) reasonable  written  evidence
of compliance with Applicable  Requirements,  (ii) the service contracts,  (iii)
the  rescission  of an  unauthorized  assignment or  subletting,  (iv) a Tenancy
Statement, (v) a requested subordination,  (vi) evidence concerning any guaranty
and/or Guarantor,  (vii) any document  requested under Paragraph 42 (easements),
or (viii) any other  documentation  or  information  which Lessor may reasonably
require  of  Lessee  under  the  terms of this  Lease,  where  any such  failure
continues for a period of ten (10) days following written notice to Lessee.
          (d) A Default  by Lessee as to the  terms,  covenants,  conditions  or
provisions of this Lease,  or of the rules  adopted  under  Paragraph 40 hereof,
other than those described in subparagraphs  13.1(a),  (b) or (c), above,  where
such Default  continues for a period of thirty (30) days after  written  notice;
provided, however, that if the nature of Lessee's Default is such that more than
thirty  (30) days are  reasonably  required  for its cure,  then it shall not be
deemed to be a Breach if Lessee  commences such cure within said thirty (30) day
period and thereafter diligently prosecutes such cure to completion.
          (e) The occurrence of any of the following  events:  (i) the making of
any  general  arrangement  or  assignment  for the  benefit of  creditors;  (ii)
becoming a "debtor"  as defined in 11  U.S.C.ss.  101 or any  successor  statute
thereto  (unless,  in the case of a petition filed against  Lessee,  the same is
dismissed  within  sixty  (60)  days);  (iii) the  appointment  of a trustee  or
receiver to take possession of  substantially  all of Lessee's assets located at
the  Premises or of Lessee's  interest in this Lease,  where  possession  is not
restored to Lessee within thirty (30) days; or (iv) the attachment, execution or
other judicial  seizure of  substantially  all of Lessee's assets located at the
Premises  or of  Lessee's  interest  in this  Lease,  where such  seizure is not
discharged  within thirty (30) days;  provided,  however,  in the event that any
provision  of this  subparagraph  (e) is contrary to any  applicable  law,  such
provision  shall be of no force or effect,  and not affect the  validity  of the
remaining provisions.
          (f) The  discovery  that any  financial  statement of Lessee or of any
Guarantor given to Lessor was materially false.
          (g)  [No text.]
     13.2 Remedies.  If Lessee fails to perform any of its affirmative duties or
obligations,  within  ten  (10)  days  after  written  notice  (or in case of an
emergency,  without  notice),  Lessor may, at its option,  perform  such duty or
obligation  on Lessee's  behalf,  including  but not limited to the obtaining of
reasonably required bonds, insurance policies, or governmental licenses, permits
or approvals.  The costs and expenses of any such performance by Lessor shall be
due and payable by Lessee upon receipt of invoice  therefor.  If any check given
to Lessor by Lessee  shall not be  honored  by the bank upon  which it is drawn,
Lessor,  at its option,  may require all future payments to be made by Lessee to
be by cashier's  check.  In the event of a Breach,  Lessor may,  with or without
further  notice or demand,  and without  limiting  Lessor in the exercise of any
right or remedy which Lessor may have by reason of such Breach:
          (a)  Terminate  Lessee's  right to  possession  of the Premises by any
lawful  means,  in which  case this  Lease  shall  terminate  and  Lessee  shall
immediately  surrender  possession  to  Lessor.  In such event  Lessor  shall be
entitled to recover  from  Lessee:  (i) the unpaid Rent which had been earned at
the time of  termination;  (ii) the worth at the time of award of the  amount by
which the unpaid rent which would have been earned after  termination  until the
time of award  exceeds  the amount of such  rental  loss that the Lessee  proves
could have been reasonably avoided;  (iii) the worth at the time of award of the
amount by which the  unpaid  rent for the  balance of the term after the time of
award  exceeds the amount of such rental  loss that the Lessee  proves  could be
reasonably avoided; and (iv) any other amount necessary to compensate Lessor for
all the  detriment  proximately  caused by the  Lessee's  failure to perform its
obligations  under this Lease or which in the ordinary course of things would be
likely to result therefrom,  including but not limited to the cost of recovering
possession  of  the  Premises,   expenses  of  reletting,   including  necessary
renovation and alteration of the Premises,  reasonable attorneys' fees, and that
portion of any leasing  commission  paid by provision  (iii) of the  immediately
preceding  sentence shall be computed by discounting such amount at the discount
rate of the Federal  Reserve Bank of the District  within which the Premises are
located  at the time of award  plus one  percent  (1%).  Efforts  by  Lessor  to
mitigate  damages  caused  by  Lessee's  Breach  of this  Lease  shall not waive
Lessor's  right to recover  damages under  Paragraph 12. If  termination of this
Lease is obtained through the provisional  remedy of unlawful  detainer,  Lessor
shall have the right to recover in such  proceeding  any unpaid Rent and damages
as are  recoverable  therein,  or Lessor may reserve the right to recover all or
any part thereof in a separate suit. If a notice and grace period required under
Paragraph 13.1 and the unlawful detainer statute shall run concurrently, and the
failure of Lessee to cure the  Default  within the greater of the two such grace
periods shall  constitute  both an unlawful  detainer and a Breach of this Lease
entitling  Lessor to the  remedies  provided  for in this  Lease  and/or by said
statue.
          (b) Continue the Lease and Lessee's  right to  possession  and recover
the Rent as it becomes due, in which event Lessee may sublet or assign,  subject
only to reasonable  limitations.  Acts of maintenance,  efforts to relet, and/or
the  appointment  of a receiver  to protect  the  Lessor's  interest,  shall not
constitute a  termination  of the Lessee's  right to  possession.  See Addendum,
Section 13.2.
          (c) Pursue any other remedy now or hereafter  available under the laws
or  judicial  decisions  of the state  wherein the  Premises  are  located.  The
expiration or termination of this Lease and/or the termination of Lessee's right
to  possession  shall not relieve  Lessee  from  liability  under any  indemnity
provisions  of this Lease as to matters  occurring  or accruing  during the term
hereof or by reason of Lessee's occupancy of the Premises.
     13.3 Inducement  Recapture.  Any agreement for free or abated rent or other
charges,  or for the  giving or paying by Lessor to or for Lessee of any cash or
other bonus,  inducement or consideration for Lessee's entering into this Lease,
all of which concessions are hereinafter referred to as "Inducement Provisions,"
shall be deemed  conditioned upon Lessee's full and faithful  performance of all
of the terms,  covenants and conditions of this Lease. Upon Breach of this Lease
by Lessee, any such Inducement  Provision shall  automatically be deemed deleted
from this Lease and of no further force or effect,  and any rent,  other charge,
bonus,  inducement or consideration  theretofore abated, given or paid by Lessor
under such an  Inducement  Provision  shall be  immediately  due and  payable by
Lessee to Lessor,  notwithstanding any subsequent cure of said Breach by Lessee.
The  acceptance by Lessor of rent or the cure of the Breach which  initiated the
operation of this paragraph shall not

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be  deemed a  waiver  by  Lessor  of the  provisions  of this  paragraph  unless
specifically so stated in writing by Lessor at the time of such acceptance.
     13.4     Late Charges.  See Addendum, Section 13.4.
     13.5 Interest.  Any monetary payment due Lessor hereunder,  other than late
charges,  not received by Lessor within  thirty (30) days  following the date on
which it was due, shall bear interest from the thirty-first  (31st) day after it
was due.  The  interest  ("interest")  charged  shall be equal to the prime rate
charged by the largest state  chartered  bank in the state in which the Premises
are  located  plus 4%,  but shall not exceed the  maximum  rate  allowed by law.
Interest is payable in addition to the  potential  late charge  provided  for in
Paragraph 13.4.
     13.6     Breach by Lessor.
          (a)  Notice of  Breach.  Lessor  shall not be deemed in breach of this
Lease unless  Lessor fails  within a  reasonable  time to perform an  obligation
required to be performed by Lessor. For purposes of this Paragraph, a reasonable
time shall in no event be less than  thirty  (30) days after  receipt by Lessor,
and any  Lender  whose name and  address  shall  have been  furnished  Lessee in
writing for such purpose,  of written notice specifying  wherein such obligation
of Lessor  has not been  performed;  provided,  however,  that if the  nature of
Lessor's  obligation  is such  that more than  thirty  (30) days are  reasonably
required for its performance,  then Lessor shall not be in breach if performance
is  commenced  within  such  thirty  (30) day period and  thereafter  diligently
pursued to completion.
          (b)  Performance  by Lessee on Behalf  of  Lessor.  In the event  that
neither  Lessor  nor Lender  cures said  breach  within  thirty  (30) days after
receipt of said notice,  or if having commenced said cure they do not diligently
pursue it to  completion,  then Lessee may elect to cure said breach at Lessee's
expense and offset from Rent an amount  equal to the greater of one month's Base
Rent  or the  Security  Deposit,  and to pay an  excess  of such  expense  under
protest,  reserving  Lessee's right to reimbursement  from Lessor.  Lessee shall
document  the cost of said cure and supply  said  documentation  to Lessor.  14.
Condemnation.  If the Premises or any portion  thereof are taken under the power
of  eminent  domain or sold  under  the  threat of the  exercise  of said  power
(collectively  "Condemnation"),  this Lease shall terminate as to the part taken
as of the date the condemning  authority  takes title or  possession,  whichever
first  occurs.  If more than ten  percent  (10%) of any  building,  or more than
twenty-five  percent  (25%) of the land area not  occupied by any  building,  is
taken by  Condemnation,  Lessee may,  at Lessee's  option,  to be  exercised  in
writing within ten (10) days after Lessor shall have given Lessee written notice
of such taking (or in the absence of such notice, within ten (10) days after the
condemning authority shall have taken possession) terminate this Lease as of the
date  the  condemning  authority  takes  such  possession.  If  Lessee  does not
terminate this Lease in accordance  with the foregoing,  this Lease shall remain
in full force and effect as to the  portion of the  Premises  remaining,  except
that the Base Rent shall be reduced in proportion to the reduction in utility of
the Premises caused by such  Condemnation.  Condemnation  awards and/or payments
shall  be  the  property  of  Lessor,  whether  such  award  shall  be  made  as
compensation  for  diminution in value of the  leasehold,  the value of the part
taken,  or for  severance  damages;  provided,  however,  that  Lessee  shall be
entitled to any compensation for Lessee's relocation expenses,  loss of business
goodwill and/or Trade  Fixtures,  without regard to whether or not this Lease is
terminated  pursuant to the provisions of this  Paragraph.  All  Alterations and
Utility   Installations  made  to  the  Premises  by  Lessee,  for  purposes  of
Condemnation  only,  shall be  considered  the property of the Lessee and Lessee
shall be entitled to any and all compensation which is payable therefor.  In the
event that this Lease is not  terminated by reason of the  Condemnation,  Lessor
shall  repair  any  damage  to the  Premises  caused by such  Condemnation.  15.
Broker's Fee.
     15.1     Additional Commission.  [No text.]
     15.2     Assumption of Obligations.  [No text.]
     15.3     Representations and Indemnities of Broker Relationships.  Lessee 
and Lessor each represent and warrant to the other that it has had no dealings 
with any person, firm, broker or finder (other than the Brokers, if any) in 
connection with this Lease, and that no one other than said named Brokers is 
entitled to any commission or finder's fee in connection herewith.  Lessee and 
Lessor do each hereby agree to indemnify, protect, defend and hold the other 
harmless from and against liability for compensation or charges which may be
claimed by any such unnamed broker, finder or other similar party by reason of 
any dealings or actions of the indemnifying Party, including any costs, 
expenses, attorneys' fees reasonably incurred with respect thereto.  See 
Addendum, Sec. 15.3.
16.     Tenancy Statement/Estoppel Certificate.
     16.1 Each Party (as  "Responding  Party")  shall within ten (10) days after
written  notice  from  the  other  Party  (the   "Requesting   Party")  execute,
acknowledge  and  deliver to the  Requesting  Party an estoppel  certificate  in
writing,  in form  similar to the then most  current  "Tenancy  Statement"  form
published  by  the  American  Industrial  Real  Estate  Association,  plus  such
additional  information,  confirmation  and/or  statements  as may be reasonably
requested by the Requesting Party.
     16.2 If Lessor desires to finance,  refinance, or sell the Premises, or any
part thereof, Lessee and all Guarantors shall deliver to any potential lender or
purchaser  designated by Lessor such  financial  statements as may be reasonably
required  by such  lender or  purchaser,  including  but not limited to Lessee's
financial statements for the past three (3) years. All such financial statements
shall be received by Lessor and such lender or purchaser in confidence and shall
be used only for the purposes herein set forth.  17.  Definition of Lessor.  The
term  "Lessor"  as used  herein  shall  mean the  owner or owners at the time in
question of the fee title to the  Premises,  or, if this is a  sublease,  of the
Lessee's  interest  in the prior  lease.  In the event of a transfer of Lessor's
title or interest in the  Premises or this Lease,  Lessor  shall  deliver to the
transferee or assignee (in cash or by credit) any unused  Security  Deposit held
by Lessor.  Except as provided in Paragraph 15, upon such transfer or assignment
and delivery of the Security  Deposit,  as aforesaid,  the prior Lessor shall be
relieved of all liability with respect to the obligations and/or covenants under
this Lease  thereafter to be performed by the Lessor.  Subject to the foregoing,
the  obligations  and/or  covenants  in this Lease to be performed by the Lessor
shall be binding only upon the Lessor as  hereinabove  defined.  Notwithstanding
the above, the original Lessor under this Lease,  and all subsequent  holders of
the Lessor's  interest in this Lease shall remain  liable and  responsible  with
regard to the potential duties and liabilities of Lessor pertaining to Hazardous
Substances as outlined in Paragraph 6 above. 18. Severability. The invalidity of
any provision of this Lease, as determined by a court of competent jurisdiction,
shall in no way affect the validity of any other provision hereof.

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19.     Days.  Unless otherwise specifically indicated to the contrary, the word
"days" as used in this Lease shall mean and refer to calendar days.
20.     Limitation on Liability.  Except with respect to Lessor's fraud, gross 
negligence or willful misconduct, the obligations of Lessor under this lease 
shall not constitute personal obligations of Lessor, the individual partners of 
Lessor or its or their individual partners, directors, officers or shareholders,
and Lessee shall look to the Premises, and to no other assets of Lessor, for the
satisfaction of any liability of Lessor with respect to this Lease, and shall 
not seek recourse against the individual partners of Lessor, or its or their
individual partners, directors, officers or shareholders, or any of their 
personal assets for such satisfaction.
21.     Time of Essence.  Time is of the essence with respect to the performance
of all obligations to be performed or observed by the Parties under this Lease.
22.     No Prior or Other Agreements; Broker Disclaimer.  This Lease contains 
all agreements between the Parties with respect to any matter mentioned herein, 
and no other prior or contemporaneous agreement or understanding shall be 
effective.  Lessor and Lessee each represents and warrants to the Brokers that 
it has made, and is relying solely upon, its own investigation as to the nature,
quality, character and financial responsibility of the other Party to this Lease
and as to the nature, quality and character of the Premises.  Brokers have no
responsibility with respect to negotiation, execution, delivery or performance 
by either Lessor or Lessee under this Lease or any amendment or modification 
hereto shall be limited to an amount up to the fee received by such Broker 
pursuant to this Lease; provided, however, that the foregoing limitation on each
Broker's liability shall not be applicable to any gross negligence or willful 
misconduct of such Broker.
23.     Notices.
     23.1 Notice  Requirements.  All notices required or permitted by this Lease
shall be in writing  and may be  delivered  in person (by hand or by courier) or
may be sent by certified or registered mail or U.S. Postal Service Express Mail,
with  postage  prepaid,  and shall be deemed  sufficiently  given if served in a
manner specified in this Paragraph 23. The addresses noted adjacent to a Party's
signature on this Lease shall be that Party's address for delivery or mailing of
notices.  Either  Party may by written  notice to the other  specify a different
address for notice, except that upon Lessee's taking possession of the Premises,
the Premises shall constitute Lessee's address for notice. A copy of all notices
to Lessor  shall be  concurrently  transmitted  to such party or parties at such
addresses as Lessor may from time to time  hereafter  designate in writing.  See
Addendum.
     23.2 Date of Notice.  Any notice  sent by  registered  or  certified  mail,
return receipt requested, shall be deemed given on the date of delivery shown on
the receipt card, or if no delivery date is shown, the postmark thereon. Notices
delivered by United States Express Mail or overnight courier that guarantee next
day delivery shall be deemed given  twenty-four (24) hours after delivery of the
same to the Postal  Service or  courier.  If notice is  received  on a Saturday,
Sunday or legal holiday,  it shall be deemed  received on the next business day.
24. Waivers.  No waiver by Lessor of the Default or Breach of any term, covenant
or  condition  hereof by  Lessee,  shall be  deemed a waiver of any other  term,
covenant or condition hereof,  or of any subsequent  Default or Breach by Lessee
of the same or of any other term, covenant or condition hereof. Lessor's consent
to, or  approval  of,  any act shall  not be  deemed to render  unnecessary  the
obtaining of Lessor's  consent to, or approval of, any subsequent or similar act
by Lessee,  or be construed as the bases of an estoppel to enforce the provision
or provisions of this Lease  requiring  such consent.  The acceptance of Rent by
Lessor shall not be a waiver of any Default or Breach by Lessee.  Any payment by
Lessee may be  accepted  by Lessor on account of moneys or damages  due  Lessor,
notwithstanding  any  qualifying  statements  or  conditions  made by  Lessee in
connection  therewith,  which such statements  and/or  conditions shall be of no
force or effect whatsoever unless specifically agreed to in writing by Lessor at
or before the time of deposit of such payment.  25. Recording.  Either Lessor or
Lessee shall, upon request of the other, execute, acknowledge and deliver to the
other a short form  memorandum of this Lease for recording  purposes.  The Party
requesting  recordation  shall be responsible for payment of any fees applicable
thereto.  26. No Right To Holdover.  Lessee has no right to retain possession of
the Premises or any part thereof  beyond the  expiration or  termination of this
Lease.  In the  event  that  Lessee  holds  over,  then the Base  Rent  shall be
increased  to one hundred  fifteen  percent  (115%) of the Base Rent  applicable
during the month  immediately  preceding the expiration or termination.  Nothing
contained  herein shall be construed as consent by Lessor to any holding over by
Lessee. 27. Cumulative Remedies. No remedy or election hereunder shall be deemed
exclusive but shall, wherever possible, be cumulative with all other remedies at
law or in equity. 28. Covenants and Conditions;  Construction of Agreement.  All
provisions  of this  Lease  to be  observed  or  performed  by  Lessee  are both
covenants and conditions.  In construing this Lease, all headings and titles are
for the  convenience  of the parties only and shall not be  considered a part of
this Lease.  Whenever  required by the context,  the singular  shall include the
plural and vice versa.  This Lease shall not be  construed as if prepared by one
of the parties,  but rather according to its fair meaning as a whole, as if both
parties had prepared it. 29. Binding Effect;  Choice of Law. This Lease shall be
binding upon the parties, their personal representatives, successors and assigns
and be governed by the laws of the State in which the Premises are located.  Any
litigation  between the Parties hereto  concerning this Lease shall be initiated
in the county in which the Premises are located. 30. Subordination;  Attornment;
Non-Disturbance.
     30.1  Subordination.  This Lease and any  Option  granted  hereby  shall be
subject and subordinate to any ground lease,  mortgage,  deed of trust, or other
hypothecation  or security  device  (collectively,  "Security  Device"),  now or
hereafter placed upon the Premises, to any and all advances made on the security
thereof,  and to all renewals,  modifications,  and extensions  thereof.  Lessee
agrees that the holders of any such Security  Devices shall have no liability or
obligation  to perform any of the  obligations  of Lessor under this Lease.  Any
Lender may elect to have this Lease and/or any Option granted hereby superior to
the lien of its Security Device by giving written notice thereof to Lessee, this
Lease  and  such  Options  shall  be  deemed  prior  to  such  Security  Device,
notwithstanding the relative dates of the documentation or recordation thereof.
     30.2  Attornment.  Subject to the  non-disturbance  provisions of Paragraph
30.3,  Lessee  agrees to attorn  to a Lender  or any  other  party who  acquires
ownership of the Premises by reason of a foreclosure of a Security  Device,  and
that in the event of such  foreclosure,  such new owner shall not: (i) be liable
for any act or omission of any prior lessor or with respect to events  occurring
prior to  acquisition  of ownership;  (ii) be subject to any offsets or defenses
which  Lessee  might  have  against  any  prior  lessor,  or  (iii)  be bound by
prepayment of more than one (1) month's rent.
     30.3  Non-Disturbance.  With  respect to Security  Devices  entered into by
Lessor after the execution of this Lease,  Lessee's  subordination of this Lease
shall  be  subject  to  receiving  a  commercially  reasonable   non-disturbance
agreement (a "Non-Disturbance  Agreement") from the Lender which Non-Disturbance
Agreement  provides  that Lessee's  possession of the Premises,  and this Lease,
including  any options to extend the term hereof,  will not be disturbed so long
as  Lessee  is not in Breach  hereof  and  attorns  to the  record  owner of the
Premises.  Further,  within  sixty (60) days after the  execution of this Lease,
Lessor shall use its commercially reasonable efforts to obtain a Non-Disturbance
Agreement from the holder of any  pre-existing  Security Device which is secured
by  the   Premises.   In  the  event  that  Lessor  is  unable  to  provide  the
Non-Disturbance  Agreement  within  said sixty (60) days,  then  Lessee  may, at
Lessee's  option,  directly contact Lessor's lender and attempt to negotiate for
the execution and delivery of a Non-Disturbance Agreement. See Addendum.
     30.4 Self-Executing. The agreements contained in this Paragraph 30 shall be
effective  without the execution of any further  documents;  provided,  however,
that,  upon written  request from Lessor or a Lender in connection  with a sale,
financing or refinancing  of the Premises,  Lessee and Lessor shall execute such
further  writings as may be  reasonably  required  to  separately  document  any
subordination,  attornment and/or Non-Disturbance Agreement provided for herein.
31.  Attorneys' Fees. If any Party brings an action or proceeding to enforce the
terms  hereof or declare  rights  hereunder,  the  Prevailing  Party in any such
proceeding,   action,  or  appeal  thereon,  shall  be  entitled  to  reasonable
attorneys' fees.

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The attorneys' fees award shall not be computed in accordance with any court fee
schedule, but shall be such as to fully reimburse all attorneys' fees reasonably
incurred.  In addition,  Lessor shall be entitled to attorneys'  fees, costs and
expenses  incurred  in the  preparation  and  service of notices of Default  and
consultations  in  connection  therewith,  whether  or  not a  legal  action  is
subsequently  commenced in connection with such Default or resulting Breach. 32.
Lessor's Access;  Showing  Premises;  Repairs.  Lessor and Lessor's agents shall
have the right to enter the Premises at any time,  in the case of an  emergency,
and otherwise at reasonable  times  following  notice for the purpose of showing
the same to  prospective  purchasers,  lenders,  or  lessees,  and  making  such
alterations,  repairs,  improvements  or additions to the Premises as Lessor may
deem  necessary.  All such  activities  shall be  without  abatement  of rent or
liability  to Lessee.  Lessor may at any time place on the Premises any ordinary
"For  Sale"  signs and  Lessor  may  during  the last six (6) months of the term
hereof place on the Premises any ordinary "For Lease"  signs.  Lessee may at any
time place on or about the  Premises  any  ordinary  "For  Sublease"  sign.  33.
Auctions. Lessee shall not conduct, nor permit to be conducted, any auction upon
the  Premises  without  Lessor's  prior  written  consent.  Lessor  shall not be
obligated to exercise any standard or reasonableness  in determining  whether to
permit an auction.  34. Signs.  Except for ordinary "For Sublease" signs, Lessee
shall not place any sign upon the  exterior  of the  Premises  without  Lessor's
prior written consent.  All signs must comply with all Applicable  Requirements.
35.  Termination;  Merger.  Unless  specifically  stated otherwise in writing by
Lessor,  the  voluntary or other  surrender of this Lease by Lessee,  the mutual
termination or cancellation hereof, or a termination hereof by Lessor for Breach
by Lessee,  shall  automatically  terminate any sublease or lesser estate in the
Premises;  provided,  however,  that Lessor may elect to continue any one or all
existing subtenancies.  Lessor's failure within ten (10) days following any such
event to elect to the  contrary  by  written  notice  to the  holder of any such
lesser  interest,   shall  constitute  Lessor's  election  to  have  such  event
constitute the termination of such interest.  36. Consents.  Except as otherwise
provided herein, wherever in this Lease the consent of a Party is required to an
act by or for the other Party,  such consent shall not be unreasonably  withheld
or delayed.  Lessor's actual  reasonable  costs and expenses  (including but not
limited to  architects',  attorneys',  engineers' and other  consultants'  fees)
incurred in the  consideration  of, or response  to, a request by Lessee for any
Lessor  consent,  including  but not  limited to consents  to an  assignment,  a
subletting  or the  presence or use of a Hazardous  Substance,  shall be paid by
Lessee  upon  receipt  of an  invoice  and  supporting  documentation  therefor.
Lessor's  consent to any act,  assignment or subletting  shall not constitute an
acknowledgment  that no Default or Breach by Lessee of this  Lease  exists,  nor
shall such  consent be deemed a waiver of any then  existing  Default or Breach,
except as may be otherwise  specifically stated in writing by Lessor at the time
of such  consent.  The failure to specify  herein any  particular  condition  to
Lessor's  consent  shall not  preclude the  imposition  by Lessor at the time of
consent  of such  further  or  other  conditions  as are  then  reasonable  with
reference to the  particular  matter for which  consent is being  given.  In the
event that  either  Party  disagrees  with any  determination  made by the other
hereunder  and  reasonably  requests  the  reasons for such  determination,  the
determining  party shall furnish its reasons in writing and in reasonable detail
within ten (10) business days following such request. 37. Guarantor.
     37.1     Execution.  [No text.]
     37.2     Default.  [No text.]
38.     Quiet Possession.  Subject to payment by Lessee of the Rent and 
performance of all of the covenants, conditions and provisions on Lessee's part 
to be observed and performed under this Lease, Lessee shall have quiet
possession and quiet enjoyment of the Premises during the term hereof.
39.     Options.
     39.1     Definition.  "Option" shall mean:  (a) the right to extend the 
term of or renew this Lease.
     39.2     Options Personal To Original Lessee.  [No text.]
     39.3     Multiple Options.  In the event that Lessee has any multiple 
Options to extend or renew this Lease, a later Option cannot be exercised unless
the prior Options have been validly exercised.
     39.4     Effect of Default on Options.
          (a) Lessee  shall have no right to exercise an Option:  (i) during the
period  commencing with the giving of any notice of Default and continuing until
said  Default  is  cured,  (ii)  during  the  period  of time any Rent is unpaid
(without  regard to whether notice  thereof is given  Lessee),  (iii) during the
time Lessee is in Breach of this Lease.
          (b) The period of time within which an Option may be  exercised  shall
not be  extended or  enlarged  by reason of  Lessee's  inability  to exercise an
Option because of the provisions of Paragraph 39.4(a).
          (c) An Option shall  terminate  and be of no further  force or effect,
notwithstanding  Lessee's due and timely exercise of the Options, if, after such
exercise and prior to the commencement of the extended term, (i) Lessee fails to
pay Rent for a period of thirty (30) days after such Rent  becomes due  (without
any  necessity  of Lessor to give notice  thereof),  (ii) Lessor gives to Lessee
three (3) or more  notices of  separate  Default  during  any twelve  (12) month
period,  whether or not the  Defaults  are cured,  or (iii) if Lessee  commits a
Breach of this Lease.  40. Multiple  Buildings.  If the Premises are a part of a
group of buildings controlled by Lessor,  Lessee agrees that it will observe all
reasonable rules and regulations which Lessor may make from time to time for the
management,  safety,  and  care of  said  properties,  including  the  care  and
cleanliness  of the grounds and including the parking,  loading and unloading of
vehicles, and that Lessee will pay its fair share of common expenses incurred in
connection therewith. 41. Security Measures. Lessee hereby acknowledges that the
rental payable to Lessor hereunder does not include the cost of guard service or
other security measures,  and that Lessor shall have no obligation whatsoever to
provide  same.  Lessee  assumes all  responsibility  for the  protection  of the
Premises,  Lessee,  its agents and invitees and their  property from the acts of
third parties. 42. Reservations.  Lessor reserves to itself the right, from time
to time,  to grant,  without the consent or joinder of Lessee,  such  easements,
rights and dedications that Lessor deems necessary, and to cause the recordation
of parcel maps and restrictions, so long as such easements, rights, dedications,
maps and restrictions do not unreasonably interfere with the use of the Premises
by Lessee. Lessee agrees to sign any documents reasonably requested by Lessor to
effectuate  any such  easement  rights,  dedication,  map or  restrictions.  43.
Performance Under Protest. If at any time a dispute shall arise as to any amount
or sum of  money to be paid by one  Party  to the  other  under  the  provisions
hereof, the Party against whom the obligation to pay the money is asserted shall
have the right to make payment  "under  protest"  and such payment  shall not be
regarded as a voluntary payment and there shall survive the right on the part of
said Party to pay such sum or any part thereof,  said Party shall be entitled to
recover such sum or so much  thereof as it was not legally  required to pay. 44.
Authority.  If either Party hereto is a corporation,  trust,  limited  liability
company, partnership, or similar entity, each individual executing this Lease on
behalf of such entity  represents and warrants that he or she is duly authorized
to execute and deliver this Lease on its behalf. Each party shall, within thirty
(30) days after  request,  deliver to the other party  satisfactory  evidence of
such authority.

                              PAGE 11            Initials     /s/ GZ     /s/ LMC
                                                             --------   --------
<PAGE>

45.     Conflict.  Any conflict between the printed provisions of this Lease and
the typewritten or handwritten provisions shall be controlled by the typewritten
or handwritten provisions.
46.     Offer.  Preparation of this Lease by either Party or their agent and 
submission of same to the other Party shall not be deemed an offer to lease to 
the other Party.  This Lease is not intended to be binding until executed and
delivered by all Parties hereto.
47.     Amendments.  This Lease may be modified only in writing, signed by the 
Parties in interest at the time of the modification.  As long as they do not
materially change Lessee's obligations hereunder, Lessee agrees to make
such reasonable non-monetary modifications to this Lease as may be reasonably 
required by a Lender in connection with the obtaining of normal financing or 
refinancing of the Premises.
48.     Multiple Parties.  If more than one person or entity is named herein as 
either Lessor or Lessee, such multiple Parties shall have joint and several 
responsibility to comply with the terms of this Lease.
49.     Mediation and Arbitration of Disputes.  [No text.]

LESSOR AND LESSEE HAVE  CAREFULLY READ AND REVIEWED THIS LEASE AND EACH TERM AND
PROVISION  CONTAINED  HEREIN,  AND BY THE  EXECUTION  OF THIS  LEASE  SHOW THEIR
INFORMED AND VOLUNTARY  CONSENT  THERETO.  THE PARTIES HEREBY AGREE THAT, AT THE
TIME THIS LEASE IS EXECUTED, THE TERMS OF THIS LEASE ARE COMMERCIALLY REASONABLE
AND  EFFECTUATE  THE INTENT AND PURPOSE OF LESSOR AND LESSEE WITH RESPECT TO THE
PREMISES.

ATTENTION:  NO REPRESENTATION OR RECOMMENDATION IS MADE BY THE AMERICAN 
INDUSTRIAL REAL ESTATE ASSOCIATION OR BY ANY BROKER AS TO THE LEGAL SUFFICIENCY,
LEGAL EFFECT, OR TAX CONSEQUENCES OF THIS LEASE OR THE TRANSACTION TO WHICH IT 
RELATES.  THE PARTIES ARE URGED TO: 
1.     SEEK ADVICE OF COUNSEL AS TO THE LEGAL AND TAX CONSEQUENCES OF THIS 
LEASE.
2.     RETAIN APPROPRIATE CONSULTANTS TO REVIEW AND INVESTIGATE THE CONDITION OF
THE PREMISES.  SAID INVESTIGATION SHOULD INCLUDE BUT NOT BE LIMITED TO:  THE 
POSSIBLE PRESENCE OF HAZARDOUS SUBSTANCES, THE ZONING OF THE PREMISES, THE 
STRUCTURAL INTEGRITY, THE CONDITION OF THE ROOF AND OPERATING SYSTEMS, AND THE 
SUITABILITY OF THE PREMISES FOR LESSEE'S INTENDED USE.

WARNING:  IF THE PREMISES IS LOCATED IN A STATE OTHER THAN  CALIFORNIA,  CERTAIN
PROVISIONS  OF THE LEASE MAY NEED TO BE REVISED  TO COMPLY  WITH THE LAWS OF THE
STATE IN WHICH THE PREMISES IS LOCATED.

The  parties  hereto  have  executed  this  Lease at the  place and on the dates
specified above their respective signatures.

Executed at:  San Diego                      Executed at: San Diego
on:  June 17, 1997                           on:  June 13, 1997
By LESSOR:                                   By LESSEE:
LMC-Sorrento Investment Company,             Agouron Pharmaceuticals, Inc., 
LLC, a California limited                    a California corporation
liability company

By: /s/ Lee M. Chesnut                       By: /s/ Glenn Zinser
   ------------------------------                -------------------------------
Name Printed:  Lee M. Chesnut                Name Printed:  Glenn Zinser
Title:  Manager                              Title:  V.P., Operations
Address:  9627 Grossmont Summit Drive        Address:  10350 North Torrey Pines 
La Mesa, CA  91941                           Road, La Jolla, CA  92037
Telephone:  (619) 697-7777                   Telephone:  (619) 622-3000
Facsimile:  (619) 697-7846                   Facsimile:  (619) 622-3298


NOTE:  These forms are often modified to meet changing requirements of law and 
industry needs.  Always write or call to make sure you are utilizing the most 
current form:  AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION, 700 So. Flower 
Street, Suite 600, Los Angeles, California  90017.  (213) 687-8777. Fax No. 
(213) 687-8616.

                                     PAGE 12

<PAGE>

                            Addendum to Office Lease

         This  Addendum,  dated June 13, 1997,  constitutes  an addendum to that
certain Standard  Commercial/Industrial  Single-Tenant  ("the Lease") dated June
13, 1997, by and between (1) LMC-Sorrento  Investment Company, LLC, a California
limited liability company,  ("Lessor") and (2) Agouron Pharmaceuticals,  Inc., a
California corporation ("Lessee"). Lessor and Lessee hereby supplement and amend
the Lease, as follows:

                  1.3      Term.

                           1.3.1  Original Term.  The Original Term of the Lease
shall commence and Lessee shall be entitled to possession of the Premises for 
the purpose of accomplishing Lessee's Work  (defined  below)  on the  
Commencement  Date.  As used  herein,  the  term "Commencement  Date"  shall 
mean the date on which  Lessor and Lessee  have each approved,  in writing, the 
working plans and specifications for Lessee's Work as hereinbelow  provided.  As
soon as practicable following the written approval by Lessor and Lessee of the 
working  plans and  specifications  for Lessee's  Work, Lessor and Lessee shall
execute and deliver to each other a written  memorandum confirming  the  
Commencement  Date.  Subject to  Lessee's  option to extend and unless sooner 
terminated as herein provided,  the term of the Lease shall expire at 11:59 p.m.
on the last day of the sixth Lease Year (defined below) which date is the 
expiration of the Original Term.  References in the Lease to "Start Date" shall 
mean the Commencement Date.

                           1.3.2  Option to Renew.  Lessee shall have the right 
and option to renew the term of the Lease for a further  term of five  years  
commencing  on the  expiration  of the Original  Term.  If  Lessee  exercises  
the  option  provided  in the  preceding sentence,  then  Lessee  shall have a 
further  option to extend the Lease for an additional period of five years 
commencing on the expiration of the first option period. The options to extend 
the term of the Lease may be exercised only by the delivery by Lessee to Lessor,
not less than six months prior to the  expiration of the term,  of  written  
notice of such  exercise.  Lessee's  exercise  of the option(s) shall be 
irrevocable.  Lessee's  occupancy during the option period(s) shall be subject 
to all terms and  conditions of the Lease;  provided,  however, the Base Rent 
payable during the option period(s) shall be subject to adjustment as provided 
in Sections 1.5.4, 1.5.5 and 1.5.6, below.

                  1.5      Base Rent.

                           1.5.1  Rent Commencement and Adjustment.  As used 
herein, the term "Rent Commencement Date" shall mean the earlier of (1) the date
of the issuance of a certificate of occupancy  following  completion of Lessee's
Work ("Substantial  Completion") or (2) April 1, 1998,  which date shall be 
extended to the extent Lessor's  actions or inaction  result in delaying  the  
issuance of the  certificate  of occupancy (e.g.  if  Lessor's  failure  timely 
to respond to a request  for  approval of a change order on the critical  path 
of Lessee's  Work resulted in a two-day delay in the issuance of the certificate
of occupancy,  then the outside date for the Rent Commencement Date would be 
extended to January 3, 1998).  Commencing on the Rent Commencement Date, Lessee 
shall pay to Lessor Base Rent, in advance without deduction, offset, notice or 
demand. Subject to adjustment as provided, below, a schedule of the Base Rent to
be paid during the Original Term is as follows:

                                    Amount/
Applicable Period              Square Foot-Month                   Amount/Month*
- ----------------               -----------------                   -------------
Lease Year 1                   $1.67                               $ 90,180.00
Lease Year 2                   $1.73                               $ 93,420.00
Lease Year 3                   $1.79                               $ 96,660.00
Lease Year 4                   $1.85                               $ 99,900.00
Lease Year 5                   $1.92                               $103,680.00
Lease Year 6                   $1.98                               $106,920.00

*Based upon the Building having  estimated  54,000 rentable square feet of floor
area.
                                       
<PAGE>

If the Rent  Commencement  Date occurs on other than the first day of a calendar
month,  then the Base Rent for such partial month of the term of the Lease shall
be (1)  prorated  in the  proportion  that the number of days of the Lease is in
effect  during such period bears to 30 and (2) be paid on the Rent  Commencement
Date.  Concurrently with the execution of the Lease,  Lessee shall pay to Lessor
$90,180.00  which  shall be  credited  against  the Base Rent for the first full
calendar month following the Rent Commencement Date.

                           1.5.2  "Lease Year" Defined.  As used herein, the 
term  "Lease  Year"  shall  mean each  12-month  period  commencing  on the Rent
Commencement  Date if the Rent  Commencement Date is the first day of a calendar
month,  but otherwise on the first day of the calendar  month  immediately  next
following the calendar  month in which the Rent  Commencement  Date occurs,  and
ending on the last day of the twelfth month thereafter.  For example, (i) if the
Rent  Commencement  Date were  September  15,  1997,  (ii) the floor area of the
Building is determined to be 54,000  rentable square feet, then (1) on September
15, 1997,  Lessee would owe and pay to Lessor  $48,096.00 for prorated Base Rent
for  September,  1997,  (2) each Lease  Year would  begin on October 1 and would
expire on the  following  September  30 and (3) the  Original  Term of the Lease
would expire on September 30, 2003.

                           1.5.3  Adjustment to Base Rent During Original Term. 
Promptly  following  Substantial  Completion,  Lessor and Lessee shall cause the
Building to be measured  and the rentable  floor area  thereof to be  determined
according to BOMA standards for a single-tenant  free-standing  building. If the
rentable  floor are is  determined  to be more or less than 54,000  square feet,
then the Base Rent "Amount/Month" shown above in Section 1.5.1 shall be adjusted
based upon  multiplying the rentable floor area of the Building as determined by
Lessor and Lessee by the "Amount/Square Foot-Month" for each Lease Year as shown
in Section  1.5.1 above (e.g.  if the rentable  floor area of the Building  were
determined  to be 54,300  square feet,  then the monthly Base Rent for the first
Lease Year would be $90,681.00 and the Base Rent for each subsequent  Lease Year
would be similarly  adjusted).  If, as of the Rent Commencement Date, Lessor and
Lessee  have not agreed  upon the  rentable  floor area of the  Building,  then,
pending  determination of the rentable floor area of the Building,  Lessee shall
pay Base Rent based upon an assumed  rentable  floor area of 54,000 square feet.
If the actual  rentable  floor area is  subsequently  determined to be more than
54,000 square feet, then,  within 30 days following such  determination,  Lessee
shall pay to Lessor the  difference  between (1) the Base Rent which should have
been paid based upon the actual  rentable floor area of the Building and (2) the
actual amount of Base Rent paid by Lessee prior to such determination.  If it is
determined  that the actual  rentable  floor area of the  Building  is less than
54,000  square feet,  then Lessee  shall be entitled to credit  against the Base
Rent next coming due in an amount  equal to the excess Base Rent paid by Lessee.
In the event of a dispute regarding  determination of the rentable floor area of
the Building, then either Lessor or Lessee may submit the issue to determination
by arbitration under the auspices of the American Arbitration  Association which
shall be  conducted  pursuant  to the  commercial  rules.  Except  as  otherwise
provided in this Lease,  the venue for the  arbitration  shall be in the City of
San Diego. With respect to the conduct of the arbitration, the following shall
apply:

         (a)  Not  less  than  three  weeks  in  advance  of the  date  for  the
commencement of the arbitration  hearing,  Lessor and Lessee shall each exchange
(1) the name,  address and  qualifications  of any engineer,  architect or other
expert intended to be called at the time of the arbitration  (each, an "Expert")
and reports,  measurements  and/or data relied upon by the Expert in  connection
with forming an opinion as to the rentable floor area of the Building.

         (b) Not less than five days  prior to the date set for the  hearing  on
the arbitration,  each party shall (i) make available for an oral deposition any
Expert whose  testimony  is expected to be 

                                       2
<PAGE>

given at the time of the  arbitration and (ii)  deliver  to the other  party all
exhibits  which are  intended  to be entered into evidence at the time of the 
arbitration.

         (c) Each party shall bear their own  attorney's  fees and Expert's fees
incurred in connection with the  arbitration.  Each party shall share equally in
the  administrative  fees owed to the American  Arbitration  Association and the
reasonable hourly fees owed to the arbitrator.

         (d) Following  rendition of the  arbitrator's  award,  either party may
petition the  Superior  Court of the State of  California  for the County of San
Diego to have the award confirmed and entered as a judgment.

                           1.5.4  Determination of Base Rent for First Lease 
Year of First Option Period.  The Base Rent to be paid by Lessee to Lessor  
during  the first  Lease  Year of the first option period shall be the Market 
Rental Rate (defined below),  but, in no event shall the Base Rent for the first
Lease Year of the first option  period be less than the Base  Rent for the sixth
Lease  Year of the  Original  Term.  As used herein,  the term "Market  Rental 
Rate" shall mean that rate which is prevailing as of the  commencement  of the 
first Lease Year of the first option  period for comparable space in a 
comparable office building in the Sorrento Valley area of San Diego, California,
taking  into  consideration  the size and age of,  and improvements  in, the 
Premises,  the five-year  term of the option  period,  the contribution  made by
Lessee  to the  improvements  to the  Premises  and other relevant factors, and 
which Market Rental Rate shall be determined as follows:

         (a)      By mutual agreement between Lessor and Lessee evidenced in a 
writing signed by each and mutually delivered; or

         (b) If Lessor and Lessee  have not agreed  upon the Market  Rental Rate
prior to the  commencement  of the first Lease Year of the option  period,  then
either  Lessor  or  Lessee  may  submit  the  issue  of  Market  Rental  Rate to
determination  by  arbitration  under the auspices of the  American  Arbitration
Association which shall be conducted  pursuant to the commercial rules except as
otherwise  provided in this Lease. The venue for the arbitration shall be in the
City of San Diego. With respect to the conduct of the arbitration, the following
shall apply:

                  (i) Not less than  three  weeks in advance of the date for the
commencement of the arbitration  hearing,  Lessor and Lessee shall each exchange
(1) the name,  address  and  qualifications  of any  appraiser,  broker or other
expert intended to be called at the time of the arbitration (each, an "Expert"),
(2) any reports and/or data relied upon by the Expert in connection with forming
an opinion  as to Market  Rental  Rate and (3) a  statement  as to each  party's
determination of the Market Rental Rate ("MRR  Statement")  (i.e.,  Lessor shall
give to Lessee Lessor's determination of the Market Rental Rate and vice-versa).

             (ii) For a period of ten days  following  the  exchange  of the MRR
Statements,  either party may accept the Market  Rental Rate stated in the other
party's MRR Statement  and, in such event,  the accepted  amount will become the
Base  Rent for the  first  Lease  Year of the  option  period  (e.g.,  if Lessor
delivered  to  Lessee   timely   written   notice  of   acceptance  of  Lessee's
determination of Market Rental Rate as provided in Lessee's MRR Statement,  then
the amount  shown on Lessee's MRR  Statement  would become the Base Rent for the
first Lease Year of the option period).

            (iii) If neither party accepts the other  party's  determination  of
Market  Rental Rate,  then the  arbitration  shall be conducted  before a single
arbitrator who shall be selected pursuant to the commercial rules. Not less than
five days prior to the date set for the hearing for the arbitration,  each party
shall (1) make available for an oral  deposition  any Expert whose  testimony is
expected to be given at the time of the arbitration and (2) deliver 

                                       3
<PAGE>

to the other party all exhibits which are intended to be entered into evidence 
at the time of the arbitration.

             (iv)  Except as  provided  below,  each party  shall bear their own
attorney's fees and Expert's fees.  Except as provided  below,  each party shall
share  equally  any  administrative  fees  owed  to  the  American   Arbitration
Association   and  the   reasonable   hourly   fees  owed  to  the   arbitrator.
Notwithstanding the foregoing, if the amount of the Market Rental Rate stated in
Lessee's  MRR  Statement  is less than 95  percent  of the  Market  Rental  Rate
determined  by the  arbitrator,  then the  arbitrator  may, in the  arbitrator's
discretion,  assess against  Lessee costs incurred by Lessor in connection  with
the arbitration  including,  without  limitation,  reasonable  attorney's  fees,
Expert's fees,  arbitrator's fees and administration  fees. If the amount of the
Market  Rental Rate stated in Lessor's MRR Statement is greater than 105 percent
of the Market Rental Rate determined by the arbitrator, then the arbitrator may,
in the  arbitrator's  discretion,  assess  against the Lessor costs  incurred by
Lessee  in  connection  with  the  arbitration  including,  without  limitation,
reasonable attorney's fees, Expert's fees,  arbitrator's fees and administration
fees.

                  (v)  Following  rendition of the  arbitrator's  award,  either
party may petition the Superior  Court of the State of California for the County
of San Diego to have the award confirmed and entered as a judgment.

Pending  determination  of the Market  Rental Rate for the first option  period,
Lessee  shall pay to Lessor  Base Rent in an amount  equal to 105 percent of the
Base Rent in effect  during the sixth Lease Year.  If the Market  Rental Rate is
greater than 105 percent of the Base Rent  payable  during the sixth Lease Year,
then, within 30 days following the arbitrator's  decision determining the amount
of the Market Rental Rate, Lessee shall pay to Lessor the difference between (1)
the Base Rent which  should  have been paid  during the first  Lease Year of the
first option  period based upon the Market Renal Rate and (2) the actual  amount
of the Base Rent paid by Lessee  during the first Lease Year of the first option
period. If it is determined that the Market Rental Rate is less than one hundred
five percent of the Base Rent payable  during the sixth Lease Year,  then Lessee
shall be entitled to credit against Base Rent next coming due in an amount equal
to the excess paid by Lessee.

                           1.5.5  Determination of Base Rent for First Lease 
Year of Second Option Period.  The Base Rent to be paid by Lessee to Lessor  
during  the first  Lease Year of the second option  period  shall be the Market
Rental Rate which is  prevailing  as of the commencement  of the first Lease 
Year of the second  option  period and shall be determined  in the same manner 
as  determining  Market Rental Rate for the first Lease  Year of the first  
option  period as  provided  above in  Section  1.6.3; provided,  however,  in 
no event shall the Base Rent for the first Lease Year of the second  option 
period be less than the Base Rent for the fifth Lease Year of the first option
period. Pending determination of the Market Rental Rate for the second option 
period, Lessee shall pay to Lessor Base Rent in an amount equal to 105 percent 
of the Base Rent in effect  during the fifth Lease Year of the first 
option period. If the Market Rental Rate is greater than 105 percent of the Base
Rent  payable  during the fifth  Lease Year of the first  option  period,  then,
within 30 days following the arbitrator's decision determining the amount of the
Market Rental Rate,  Lessee shall pay to Lessor the  difference  between (1) the
Base Rent which  should have been paid during the first Lease Year of the second
option period based upon the Market Rental Rate and (2) the actual amount of the
Base Rent paid by  Lessee  during  the first  Lease  Year of the  second  option
period.  If it is determined  the Market Rental Rate is less than 105 percent of
the Base Rent payable  during the fifth Lease Year of the first  option  period,
then Lessee shall be entitled to credit against the Base Rent next coming due in
an amount equal to the excess paid by Lessee.

                                       4
<PAGE>

                           1.5.6  Determination of Base Rent for Subsequent 
Lease Years of Option Period(s).  The Base Rent for each subsequent  Lease Year 
of the option periods will be equal to the amount derived by multiplying  the 
Base Rent for the first Lease Year of the option period by a fraction, the 
numerator of which is the Index (defined below) amount  for the last  period  
for which the Index is  published  and which  ends before the  commencement  
of the Lease Year for which the  calculation  is being made and the  denominator
of which is the Index  amount  for the same  calendar  period immediately  
preceding the commencement of the option period. The "Index" is that which is 
published by the United States Department of Labor, Bureau of Labor Statistics, 
in the Consumer Price Index for all urban  consumers for the Los Angeles area, 
all items,  1982-84 base. By way of example,  if the Base Rent for the second 
Lease Year of the first option period were to be determined based upon the 
assumptions that (1) the first option period commenced October 1, 2003, 
(2) the Base Rent for the first Lease Year of the option period is  $108,000.00,
(3) the Index is published  monthly,  (4) the Index amount for September 2003 is
225.0 and (5) the Index amount for September  2004 is 234.0,  then the Base Rent
for the second Lease Year of the first option  period would be  $112,320.00.  If
the Bureau of Labor  Statistics  discontinues  the  publication  of the Index or
publishes the Index less  frequently,  or alters the Index in some other manner,
then Lessor and Lessee will adopt a  substitute  index or  substitute  procedure
which reasonably  reflects and monitors changes in consumer prices.  In no event
will the Base Rent  during the  subsequent  Lease  Years of an option  period be
reduced  below the Base  Rent for the first  Lease  Year of the  option  period.
Lessor's  failure,  by reason of oversight,  mistake or  otherwise,  to make the
calculation  or advise  Lessee  thereof prior to the end of any Lease Year or to
collect any increased Base Rent determined as set forth in this paragraph,  will
not  release  Lessee of Lessee's  obligation  to pay to Lessor,  forthwith  upon
discovery  of such  oversight  or  mistake,  an amount  equal to the  difference
between the Base Rent actually paid and the increased Base Rent that should have
been paid during the period in which such mistake or oversight continued.

                  1.7 Security  Deposit.  Upon  execution  of the Lease,  Lessee
shall pay to Lessor  $90,180.00  which shall  constitute  the Security  Deposit.
Commencing on the  Commencement  Date, the Security  Deposit shall bear interest
for the  benefit  of  Lessee at the rate of four  percent  per  annum.  Interest
accrued on the Security  Deposit  shall be paid by Lessor to Lessee on the first
day of each Lease Year commencing on the first day of the second Lease Year.

                  6.2   Hazardous   Substances.   Other  than  (1)  two  percent
crystalline  asbestos  found in floor  tile  mastic  (which  shall be removed by
Lessee's contractor at Lessor's expense during the course of completing Lessee's
Work) and (2) any matters  which may be disclosed  in the Phase I  Environmental
Assessment prepared by Natec Environmental Reporting dated April 1, 1996 (a copy
of which has been  delivered to Lessee),  Lessor  represents  and warrants  that
Lessor has no actual  knowledge of the presence on the Premises of any Hazardous
Substances (defined below).

                           6.2.1  Definition of "Hazardous Material".  As used 
herein, the term "Hazardous Material" means any  hazardous or toxic  substance,
material or waste which is or becomes regulated by any local  governmental  
authority,  the State of California or the United  States  government.  The term
"Hazardous  Material"  includes,  without limitation,  any  material or  
substance  which is (i)  defined as a  "hazardous waste,"  "extremely  hazardous
waste" or  "restricted  hazardous  waste"  under Section 25515 or 25117,  or 
listed  pursuant to Section 25140, of the California Health and Safety Code,  
Division 20, Chapter 6.5 (Hazardous Waste Control Law), (ii) defined as a 
"hazardous  substance"  under Section 25316 of the  California Health  and  
Safety  Code,  Division  2,  Chapter  6.8  (Carpenter-Presly-Tanner Hazardous  
Substance  Account  Act),  (iii)  Defined as a "hazardous  material," 
"hazardous substance" or "hazardous waste" under Section 25501 of the California
Health and 

                                       5
<PAGE>

Safety Code, Division 20, Chapter 6.95 (Hazardous  Substances),  (iv) 
petroleum, (v) asbestos, (vi) listed under Article 9 and defined as hazardous or
extremely  hazardous  pursuant  to  Article  11 of  Title  22 of the  California
Administrative  Code,  Division 4, Chapter 20, (vii)  designated as a "hazardous
substance"  pursuant to Section 311 of the Federal Water  Pollution  Control Act
(33 U.S.C.  Section  1317),  (viii) defined as a "hazardous  waste"  pursuant to
Section 1004 of the Federal  Resource  Conversation  and Recovery Act, 42 U.S.C.
Section 6901,  et. seq. (42 U.S.C Section  6903),  or (ix) defined as "hazardous
substance" pursuant to Section 101 of the Comprehensive  Environmental  Response
Compensation  and  Liability  Act, 42 U.S.C.  Section  9601 et. seq.  (42 U.S.C.
Section 9601).

                           6.2.2  Prohibition/Compliance.  Lessee shall not 
cause or permit any Hazardous Material (as defined  above) to be brought upon, 
kept or used in or about the Premiss or the Project in violation of  applicable 
law by Lessee,  its agents,  employees, contractors  or  invitees.  If  Lessee  
breaches  the  obligation  stated in the preceding sentence, or if the presence
of Hazardous Material results in unlawful contamination of the Premises,  or any
adjacent  property by Hazardous  Material otherwise  occurs  during  the term of
this  Lease or any  extension  or renewal hereof or holding over hereunder, then
Lessee shall indemnify,  defend and hold Lessor, its agents and contractors 
harmless from any and all claims,  judgment,s
damages,  penalties,  fines,  costs,  liabilities,  or losses (including without
limitation  diminution  in  value  of the  Premises,  damages  for  the  loss or
restriction  on use of  rentable  or  usable  space  or of  any  amenity  of the
Premises,  damages  arising from any adverse impact on marketing of space in the
Premises and sums paid in settlement of claims, attorneys' fees, consultant fees
and expert  fees) which arise  during or after he Lease term as a result of such
contamination.  For the purpose of this Section 6.2,  unlawful  contamination is
Hazardous  Material which violates any applicable local, state or federal las or
any regulations or standards promulgated  thereunder,  including requirements or
standards imposed by any governmental  agency or by governmental  order or court
having jurisdiction over the Premises.  This indemnification of Lessor by Lessee
includes,   without   limitation,   costs   incurred  in  connection   with  any
investigation  of  site  conditions  or  any  cleanup,  remedial,   removal,  or
restoration work required by any federal,  state or local governmental agency or
political  subdivision because of Hazardous material present in the air, soil or
ground water above on or under the Premises.  Without limiting the foregoing, if
the presence of any Hazardous Material on the Premises or any adjacent property,
caused or  permitted  by Lessee  results in any  unlawful  contamination  of the
Premises,  or any adjacent  property,  Lessee shall promptly take all actions at
its sole  expense as are  necessary  to ensure  the  Premises,  or any  adjacent
property meets all applicable local,  state and federal laws and any regulations
or standards promulgated thereunder,  in effect now or in the future,  including
requirements by any governmental  agency or impose by any governmental  order or
court having jurisdiction over the Premises,  provided that Lessor's approval of
such action shall first be obtained,  which approval shall not  unreasonably  be
withheld so long as such actions would not potentially have any material adverse
long-term or short term effect on the Premises.

                           6.2.3  Business.  Lessor acknowledges that it is not 
the intent of this Section 6.2 to prohibit  Lessee from  operating its business 
as described in Section 1.8 above. Lessee may operate its business  according to
the custom of the industry so long as the use or presence of Hazardous  Material
is strictly and properly monitored according to all applicable governmental 
requirements.  As a material inducement to Lessor to allow  Lessee to use  
Hazardous  Material  in  connection  with its business, Lessee agrees to deliver
to Lessor prior to the Rent Commencement Date a list identifying each type of 
Hazardous Material to be present on the Premises and setting  forth any and all
governmental  approvals  or permits  required in connection  with  the  presence
of  such  Hazardous  Material  on the  Premises ("Hazardous Material List"). 
Lessee shall deliver to Lessor an updated Hazardous Material  List at least once
a year.  Lessee  shall  deliver to Lessor  true and correct  copies  of the  

                                       6
<PAGE>

following  documents  (hereinafter  referred  to as the "Documents")  relating  
to the  handling,  storage,  disposal  and  emission  of Hazardous  Material  
prior to the Rent  Commencement  Date, or if unavailable at that time,  
concurrent  with the receipt from or  submission  to a  governmental agency: 
permits, approvals,  reports and correspondence,  storage and management 
plans,  notice of violations of any laws,  plans relating to the installation of
any  storage  tanks to be  installed  in or under the  Project  (provided,  said
installation  of tanks shall only be permitted after Lessor has given Lessee its
written  consent to do so,  which  consent may be withheld in Lessor's  sole and
absolute  discretion);  and all closure plans or any other documents required by
any and all federal,  state and local governmental  agencies and authorities for
any storage  tanks  installed in, on or under the Project for the closure of any
such  tanks.  Lessee  is not  required,  however,  to  provide  Lessor  with any
portion(s)  of the Documents  containing  information  of a  proprietary  nature
which,  in and of  themselves,  do not  contain  a  reference  to any  Hazardous
Material  or  hazardous  activities.  It is not he  intent  of this  Section  to
provided Lessor with information which could be detrimental to Lessee's business
should such information become possessed by Lessee's competitors.

                           6.2.4  Termination of Lease.  Notwithstanding the
provisions of Section 6.2.2 above, if Lessee or the proposed  assignee or 
sublessee is subject to an enforcement order issued by any  governmental  
authority in connection  with the use,  disposal or storage of a Hazardous  
Material at the Project,  Lessor shall have the right to terminate  the Lease in
Lessor's sole and absolute  discretion  (with respect to any such matter 
involving Lessee) and it shall not be unreasonable for Lessor to withhold its 
consent to any proposed  assignment or subletting  (with respect to any such 
matter involving a proposed assignee or sublessee).

                           6.2.5  Hazardous Substances.  References in the Lease
to the term "Hazardous Substances" shall have the same meaning as Hazardous 
materials as defined in this Addendum.

                  6.4  Inspection/Compliance.  Lessor  and  Lessor's  Lender and
consultants  shall have the right to enter into the  Premises at any time in the
case of an emergency and otherwise at reasonable  times with  reasonable  notice
for the purpose of  inspecting  the  condition of the Premises and for verifying
compliance by Lessee with the Lease. The cost of any such  inspections  shall be
paid  by  Lessor,   unless  a  material   violation  by  Lessee  of   Applicable
Requirements,  or a contamination by Lessee is found to exist or be imminent, or
the  inspection is requested or ordered by a  governmental  authority and Lessee
has failed to  adequately  respond.  In such  case,  Lessee  shall upon  request
reimburse Lessor for the cost of such inspections, so long as such inspection is
directly related to the violation or contamination.

                  8.3 Earthquake Insurance.  As part of the insurance pertaining
to the Building  and  improvements  on the  Premises,  the Insuring  Party shall
obtain  and keep in force a policy in the name of Lessor  with loss  payable  to
Lessor  and any  Lender  insuring  loss or  damage  to the  Premises  caused  by
earthquake.

                  8.5 Insurance Policies.  The requirement for 30 days notice to
Lessor  of a  modification  to an  insurance  policy  shall  only  apply  to any
modification  which results in the policy no longer being in compliance with the
requirements of the Lease.

                  8.6 Waiver of Subrogation.  To the extent permitted by law and
without affecting the coverage  provided by any policy of insurance  required to
be maintained under the Lease, Lessor and Lessee each waive the right to recover
against  the other (1) damage for injury to or death of  persons,  (2) damage to
property,  (3)  damage to the  Premises  or any part  thereof  and/or (4) claims
arising by reason of any of the  foregoing,  but only to the extent  that any of
the foregoing  damages  and/or claims under  subparts (1) through (4) hereof are
covered,  and only to the extent of such  coverage,  by  policies  of  insurance
actually  carried or  required  to 

                                       7
<PAGE>

be carried  under the Lease by either  Lessor and/or Lessee. This provision is 
intended to waive fully, and for the benefit of each  party,  any  rights  and 
claims  which  might  give  rise to a  right  of subrogation  in any  insurance
carrier.  Each party  shall  procure a clause or endorsement on any policy 
required under the Lease denying to the insurer rights of subrogation  against 
the other party to the extent rights have been waived by the insured prior to 
the occurrence of injury or loss. 

                  9.3  Partial  Damage--Uninsured  Loss.  If a Premises  Partial
Damage that is not an Insured Loss  occurs,  unless  caused by the  negligent or
willful act of Lessee (in which event, Lessee shall make the repairs at Lessee's
expense),  Lessor  shall  repair such damage as soon as  reasonably  possible at
Lessor's  expense  and this  Lease  shall  continue  in full  force and  effect;
provided,  however,  if the reasonably  estimated cost of repairing the Premises
Partial  Damage  that is not an  Insured  Loss  exceeds  $600,000.00,  then  the
following shall apply:

                           9.3.1  Lessor may deliver to Lessee written notice of
Lessor's intention to terminate the Lease.  In  order  to be  effective,  
Lessor's  notice  of  termination  must be delivered to Lessee within 30-days  
following  receipt by Lessor of knowledge of the occurrence of the Premises 
Partial Damage that is not an Insured Loss.

                           9.3.2  If, within 30 days following receipt by Lessee
of Lessor's notice of intention to terminate,  Lessee  delivers to Lessor 
written notice of Lessee's  commitment to pay the cost of the repair in excess 
of $600,000.00, then the Lease shall remain in full force and effect and Lessor
shall  cause the repair to be  accomplished and Lessor shall pay the first
$600,000.00 of the cost of such repair and Lessee shall pay for all costs of 
repair in excess of $600,000.00.

                           9.3.3  If, within the 30-day period following 
delivery to Lessee of Lessor's notice of termination,  Lessee fails to deliver  
written notice of Lessee's  commitment to pay for repair costs in excess of 
$600,000.00,  then, upon the expiration of the 30-day period, the Lease shall 
terminate.

                  10.2  Impounding  of  Real  Property  Taxes.   Notwithstanding
Section  10.2(b) of the Lease,  if Lessor's lender which has a first mortgage or
deed of trust on the Premises  requires  impounding of Real Property Taxes, then
Lessee shall pay to Lessor (and Lessor shall pay to Lessor's  lender) the amount
of such real property tax impounds.

                  12.3  Lessee's  Affiliates/Rent   Recapture.   Notwithstanding
anything contained in Section 12 of the Lease to the contrary, Lessee shall have
the right to assign the Lease  and/or  sublet all or any portion of the Premises
to a Lessee's Affiliate.  As used herein "Lessee's  Affiliate" shall mean either
(1) any subsidiary corporation as to which Lessee owns 75 percent or more of the
outstanding shares and/or (2) a parent corporation which owns 75 percent or more
of the  outstanding  shares of Lessee.  With the exception of any  assignment or
subleasing  to Lessee's  Affiliate,  Lessee shall pay to Lessor,  as  additional
rent,  if and when  received  by Lessee,  50 percent of any excess rent or other
premium  on  the  assignment,   subleasing  or  other  transfer  (e.g.,  if  the
assignment,  sublease or other  transfer  document  provides  that the assignee,
subtenant or other  transferee  thereunder is to pay any amount in excess of the
rent and other charges due under this Lease, whether such premium be in the form
of an increased  monthly or annual rental,  lump sum payment in consideration of
the assignment,  sublease or other transfer or  consideration of any other form,
including  a sale of  goodwill  and/or a covenant  not to compete or payment for
furniture,  fixtures or inventory in an amount in excess of the reasonable value
thereof)  after  first  deducting  the  reasonable  costs  incurred by Lessee in
obtaining the assignment,  sublease or transfer,  including, without limitation,
reasonable brokerage commissions and reasonable costs of leasehold

                                       8
<PAGE>

improvements made by Lessee,  which costs shall be  amortized  over the shorter 
of the useful life  of such  improvements  or the  remaining  term  of  this  
Lease  as of the installation of such leasehold improvements.

                  13.2 Lessor's  Remedies.  In the event of any Default or other
Breach by Lessee, Lessor may, at any time thereafter,  with or without notice or
demand and without  limiting Lessor in the exercise of any right or remedy which
Lessor may have by reason of such Default or Breach,  maintain Lessee's right to
possession  in which  case the Lease  shall  continue  in effect  whether or not
Lessee  shall have  abandoned  the  Premises.  In such  event,  Lessor  shall be
entitled  to  enforce  all of  Lessor's  rights  and  remedies  under the Lease,
including the right to recover the rent as it becomes due hereunder. The parties
acknowledge and agree that Lessor shall have the remedy under Civil Code section
1951.4 which provides in part:

                  The lessor has the remedy  described in California  Civil Code
         section  1951.4  (lessor may continue  lease in effect  after  lessee's
         breach and  abandonment  and recover  rent as it becomes due, if lessee
         has right to sublet or assign, subject only to reasonable limitations).

                  13.4 Late Charge.  If any Rent shall not be received by Lessor
within five days after such amount shall be due, then,  without any  requirement
for notice to Lessee, Lessee shall pay to Lessor a one-time late charge equal to
the lesser of $500.00 or five percent of such overdue amount.  If any Rent shall
not be received by Lessor  within 10 days after such amount shall be due,  then,
without  any  requirement  for  notice to Lessee,  Lessee  shall pay to Lessor a
one-time  late  charge  equal to five  percent of such  overdue  amount less the
amount of the late charge owed under the preceding sentence.  By way of example,
assume that Lessee failed to pay Base Rent in the amount of $90,180.00 which was
due on February 1, 1997,  then, under those assumed facts, (1) if Lessee had not
paid the Base Rent by February  6, 1997,  a late charge in the amount of $500.00
would be due and (2) if the Base Rent  remained  unpaid as of February 11, 1997,
then the total amount of late  charges  owed by Lessee for the default  would be
$4,509.00.

                  15.3  Brokers'  Commissions.  To the  extent  any real  estate
commissions are owed by Lessor pursuant to separate written  agreements,  Lessor
shall be solely  responsible  for  payment of such  commissions.  Lessor  hereby
discloses Lee M. Chesnut (a principal of Lessor) is a licensed  California  real
estate broker.

         23. Notices.  The provisions of Section 23 of the Lease shall not apply
to any  notices  which are  required  to be  served  by  Lessor  as a  condition
precedent to the initiation of a special proceeding for unlawful  detainer.  Any
notices  required to be served as a condition  precedent to the  initiation of a
special  proceeding for unlawful  detainer  (including any notices under Section
13.1 of the Lease) shall be served in  accordance  with Code of Civil  Procedure
section 1162 as such section may be subsequently amended,  repealed or replaced.
With respect to all other notices,  the parties  acknowledge  and agree that, in
addition to the manner of delivery provided in Section 23 of the Lease,  notices
may be delivered by Federal Express or other similar overnight  delivery service
which provides evidence of receipt. If notice is delivered by Federal Express or
such other overnight  delivery service,  the notice shall be deemed delivered as
of the date shown by the evidence of receipt.

         30.  Attornment  and  Nondisturbance.   Lessee  acknowledges  that  the
Subordination,  Non-Disturbance  and  Attornment  Agreement  attached  hereto as
Exhibit  1 is in form  and  content  acceptable  to  Lessee  and  constitutes  a
"commercially  reasonable  Non-Disturbance  Agreement"  within  the  meaning  of
Section 30.3 of the Lease.

                                       9
<PAGE>

         31.  Attorneys'  Fees;  Jury  Trial  Waiver.  Lessor  shall  further be
entitled to recover  reasonable  attorney's fees incurred in connection with any
hearing or motion for assumption or rejection of the Lease under Title 11 of the
United  States  Code.  Lessee  shall be further  entitled to recover  reasonable
attorney's fees in connection with any hearing or adversary  proceedings related
to this Lease in any  bankruptcy  case filed by or  against  Lessor.  Lessor and
Lessee  hereby  waive  their  respective  right to trial by jury of any cause of
action, claim, counter-claim or cross-complaint in any action, proceeding and/or
hearing  brought by either Lessor against Lessee or Lessee against Lessor on any
matter whatsoever  arising out of, or in any way connected with, this Lease, the
relationship of Lessor and Lessee,  Lessee's use or occupancy of the Premises or
any  claim of  injury or damage or the  enforcement  of any  remedy  under  law,
statute or regulation, emergency or otherwise, now or hereafter in effect.

         34. Signage. Lessee shall be entitled to install a monument sign in the
location depicted in the site plan attached hereto as Exhibit 2. All other signs
placed in the exterior of the Premises and/or upon the Building shall be subject
to Lessor's prior written  approval which shall not be unreasonably  withheld or
delayed.

         50.      Lessee's Work.

                  50.1   Approval  of   Lessee's   Plans,   Specifications   and
Contractor.  Within 45 days following execution of the Lease, Lessee shall cause
to be prepared and delivered to Lessor (1)  preliminary  space plan drawings and
(2) preliminary  specifications for the improvements,  fixtures and equipment to
be installed  into the  Premises.  Within two business days  following  Lessor's
receipt of the  preliminary  plans and  specifications,  Lessor shall provide to
Lessee approval of such preliminary plans and specifications unless Lessor has a
reasonable and material  objection  thereto.  Within 45 days following  Lessor's
approval of the preliminary plans and  specifications,  Lessee shall cause to be
prepared  and  delivered  to Lessor (1)  working  plans  which are  sufficiently
detailed  in order to apply for and  obtain a building  permit for the  interior
improvements  to the Premises  which shall be based upon the  preliminary  plans
previously approved by Lessor and (2) final specifications for the improvements,
fixtures and  equipment to be installed  into the Premises  which shall be based
upon the preliminary  specifications  previously approved by Lessor.  Within two
business   days   following   Lessor's   receipt  of  the   working   plans  and
specifications, Lessor shall approve such plans and specifications unless Lessor
has a reasonable and material objection thereto.  Following Lessor's approval of
the working plans and specifications,  Lessee shall submit the working plans and
specifications  to the Building  Inspection  Department of the City of San Diego
for the purpose of obtaining a building permit for the  construction of the work
described in the working plans and specifications (hereinafter "Lessee's Work").
If, during the course of construction of Lessee's Work,  Lessee  determines that
it is necessary or desirable to make a material  change to the working plans and
specifications, then such proposed change shall be first submitted to Lessor for
Lessor's  review and  approval,  which  shall not be  unreasonably  withheld  or
delayed.  Prior to commencement of Lessee's Work,  Lessee shall submit to Lessor
the name,  telephone number,  license number and contact  representative for the
general  contractor  whom Lessee  intends to use to  accomplish  Lessee's  Work.
Within  two  business  days  following  Lessor's  receipt  of  such  information
concerning  the  proposed  general  contractor,  Lessor shall  approve  Lessee's
selection of the general  contractor unless Lessor has a reasonable and material
objection thereto.  If Lessor's lender who is furnishing all or a portion of the
funds for Lessor's  Allowance  requires similar rights of approval of the plans,
specifications and/or contractor,  Lessee shall cooperate with Lessor to satisfy
such lender's reasonable requests for information and requirements for approval.

                                       10
<PAGE>

                  50.2 Completion of Lessee's Work.  Following Lessor's approval
of the  working  plans and  specifications  and the  issuance by the City of San
Diego  of a  building  permit  for  Lessee's  Work,  Lessee  shall,  thereafter,
diligently,  competently  and  expeditiously  complete  Lessee's Work.  With the
exception of Lessor's  obligations with respect to payment of Lessor's Allowance
(defined  below),  Lessee  shall  indemnify  and hold Lessor  harmless  from and
against any and all claims,  liabilities,  damages,  penalties,  fines and costs
arising out of or relating to the completion of Lessee's Work including, without
limitation,   any  claims  of  lien  for  payment  by  any  general  contractor,
subcontractor  and/or material  supplier and/or any claim for death or injury to
persons and/or damage to property.

                  50.3  Lessor's  Allowance.  Concurrently  with the approval by
Lessor of the working  plans and  specifications  and subject to  adjustment  as
provided  below,  Lessor shall  deliver to Lessee  evidence of  availability  of
$2,430,000.00  ("Lessor's  Allowance")  to be used to pay the  cost of  Lessee's
Work.  Lessor's Allowance shall be used to pay the fees, costs and expenses owed
to  the  architects,   engineers,  general  contractor,   subcontractors  and/or
materials suppliers  furnishing labor and materials to accomplish Lessee's Work.
Lessor's  Allowance  shall  also  be used to pay for  liability  and  course  of
construction  insurance maintained by Lessor and/or Lessee during the completion
of  Lessee's  Work and  Lessor's  Expansion  Work.  Lessor  shall  pay to Lessee
Lessor's Allowance within ten days following delivery by Lessee to Lessor of (1)
a copy of the  certificate of occupancy and (2) lien releases upon final payment
showing  "$0.00" as the disputed  amount from Lessee's  contractor and all other
subcontractors  and material  suppliers who furnished labor and materials to the
Premises for Lessee's Work;  provided,  however,  if there exists a dispute with
respect to the amount owed to Lessee's contractor or a subcontractor or material
supplier,  Lessor  shall only  withhold  an amount  equal to 150  percent of the
disputed amount and shall disburse to Lessee the balance of Lessor's  Allowance.
Lessor and Lessee agree that the amount of Lessor's  Allowance as provided above
has been calculated  based upon an estimated  completed  rentable floor area for
the Premises of 54,000  rentable square feet. If the approved plans for Lessor's
Expansion  Work (defined  below) result in the estimated  rentable floor area of
the  Premises  being more or less than 54,000  square  feet,  then the amount of
Lessor's  Allowance  shall be calculated by  multiplying  what Lessee and Lessor
estimate  to be  the  final  rentable  floor  area  of  the  Building  following
completion  of  Lessor's  Expansion  Work by $45.00  (e.g.,  if,  based upon the
approved plans for Lessor's Expansion Work, the estimated rentable floor area of
the  Building  will be, upon  completion,  54,300  square  feet,  then  Lessor's
Allowance  would be  $2,443,500.00).  In  addition  to the  amount  of  Lessor's
Allowance,  Lessor shall pay for Lessee's  contractor to install in the Building
an elevator.

                  50.4      Special Provisions Re Lessee's Work.  With respect 
to Lessee's Work, Lessor and Lessee further agree:

                            50.4.1  Interior Accessibility Requirements.  In the
context of performing Lessee's Work,  Lessee  shall be  responsible  for  
installing  into the  interior of the Building all  improvements  which may be 
required to comply with  Americans with Disabilities Act and/or any other
similar laws concerning accessibility.  Lessor shall, at Lessor's sole cost and 
expense, be responsible for compliance with any such laws as they pertain to the
exterior parking areas,  walkways and driveways of the Premises and entrances to
the Building.

                            50.4.2  Roof.  In the course of performing Lessee's 
Work, Lessee shall be responsible to replace  the  roof  covering  of  the  
Building  such  that,  upon   Substantial Completion, the roof shall be in new 
condition.  Without limiting the generality of the foregoing,  Lessee shall 
assure that all mechanical  systems installed on the roof are properly  
installed  over sheet metal pad with proper  flashing and sealing.  
Notwithstanding Sections 2.3 and 7.1(c) of the Lease, Lessor shall not be 
responsible for any 

                                       11
<PAGE>

maintenance, repair and/or replacement of the roof during the  term  of the  
Lease.  In  addition  to  Lessor's  Allowance,  Lessor  shall contribute 
$25,000.00 to the cost of replacing the roof covering.

                            50.4.3  Improvements to be Surrendered Upon 
Expiration/Termination of Lease.  All of Lessee's Work shall, upon expiration or
termination of the Lease, be surrendered to Lessor and shall become Lessor's  
property.  Lessee  acknowledges  and agrees that the fume hoods, laboratory 
benches,  laboratory sinks and mechanical system shall not constitute  Lessee's 
fixtures which Lessee is entitled to remove upon the expiration or termination 
of the Lease. In connection  with  preparation and approval of the plans and  
specifications  for Lessee's Work,  Lessor and Lessee shall prepare and agree 
upon a list of Trade  Fixtures  which Lessee is entitled to remove at the  
expiration  or  termination  of the Lease  (collectively  "the Removable 
Fixtures"). If, prior to approval of the working drawings for Lessee's Work,  
Lessor and Lessee are unable to agree upon the  fixtures  to be  included
within the Removable  Fixtures,  then either party ("the  Notifying  Party") may
submit to the other party ("the  Receiving  Party") a list of the fixtures which
the  Notifying  Party  is  willing  to agree to as  constituting  the  Removable
Fixtures.  Within five business days  following  receipt of the list of proposed
Removable  Fixtures from the Notifying  Party,  the Receiving Party shall either
(1) accept the list of the Removable Fixtures (in which case, the list submitted
by the  Notifying  Party shall  become the list of  Removable  Fixtures)  or (2)
deliver to the Notifying  Party a list of fixtures which the Receiving  Party is
willing to agree to as constituting the Removable Fixtures. Within five business
days following  receipt by the Notifying Party of the Receiving  Party's list of
proposed  Removable  Fixtures,  the Notifying  Party shall either (1) accept the
Receiving Party's list of proposed  Removable  Fixtures (in which case, the list
prepared by the Receiving Party shall constitute the list of Removable Fixtures)
or (2) deliver notice to the Receiving  Party that the Notifying Party elects to
terminate  the Lease (in which case,  the Lease shall  terminate,  Lessor  shall
refund to Lessee the  Security  Deposit and any advance  payment of Rent and the
parties shall have no further  obligations  to each other under the terms of the
Lease).

                  50.5  Payment  of  Excess   Costs/Refund  of  Unused  Lessor's
Allowance. As soon as practicable following Substantial  Completion,  Lessee and
Lessee's  contractor  shall perform an accounting of the total costs incurred to
accomplish Lessee's Work (including all costs for design, permitting, inspection
and  utilities).  If the total  cost for  Lessee's  Work  exceeds  the amount of
Lessor's  Allowance,  then Lessee  shall pay such  excess.  If the total cost of
Lessee's Work is less than the amount of Lessor's  Allowance  then the following
shall apply:

                            50.5.1  Subject to Lessor's prior approval, which 
shall not be unreasonably withheld or delayed,  Lessee may, during the first 
Lease Year, utilize the remaining balance of Lessor's  Allowance  for the  
installation  into the  Premises of  additional permanent fixtures and 
improvements (collectively "Additional Work").

                            50.5.2  If, by the expiration of the first Lease 
Year, the total amount of Lessor's Allowance  has not been  expended  for the  
completion  of Lessee's  Work and/or Additional Work and  improvements as 
provided in the preceding  sentence,  then, within 30 days  following the  
expiration of the first Lease Year,  Lessor shall refund to Lessee the amount of
the difference between Lessor's Allowance and the total amount expended for 
Lessee's Work Additional Work.

                  51.1   Approval  of  Expansion   Plans,   Specifications   and
Contractor.  Within 45 days following execution of the Lease, Lessee shall cause
to be prepared and delivered to Lessor (1)  preliminary  drawings  pertaining to
(i) the proposed  expansion of the second floor mezzanine of the Building by the
addition of approximately 10,000 square feet and (ii) installation of windows 

                                       12
<PAGE>

in the exterior walls and other improvements to cause the new second story space
to be  similar  in  appearance  to the  existing  second  story  space  and  (2)
preliminary  specifications for the components of the expansion work. Within two
business  days  following  Lessor's  receipt  of the  preliminary  drawings  and
specifications,  Lessor  shall  provide to Lessee  approval of such  preliminary
drawings  and  specifications  unless  Lessor  has  a  reasonable  and  material
objection thereto. Within 45 days following Lessor's approval of the preliminary
drawings and specifications,  Lessee shall cause to be prepared and delivered to
Lessor (1) working plans which are  sufficiently  detailed in order to apply for
and obtain a building  permit for the  expansion  work which shall be based upon
the  preliminary   drawings   previously   approved  by  Lessor  and  (2)  final
specifications  for the  components  to be  installed  in  connection  with  the
expansion  work  which  shall  be  based  upon  the  preliminary  specifications
previously  approved by Lessor.  Within two  business  days  following  Lessor's
receipt of the working plans and specifications, Lessor shall approve such plans
and  specifications  unless  Lessor  has a  material  and  reasonable  objection
thereto.  Following  Lessor's approval of the working plans and  specifications,
Lessee  shall  submit  the  working  plans and  specifications  to the  Building
Inspection  Department  of the City of San Diego for the purpose of  obtaining a
building permit for the  construction of the work described in the working plans
and  specifications  (hereinafter  "Lessor's  Expansion  Work").  If, during the
course of construction of Lessor's  Expansion Work, either party determines that
it is necessary or desirable to make a material  change to the working plans and
specifications, then such change shall first be submitted to the other party for
other party's review and approval,  which shall not be unreasonably  withheld or
delayed.  Lessor's  Expansion  Work shall be  accomplished  by the same  general
contractor hired by Lessee to
accomplish  Lessee's Work,  subject to the approval of Lessor's  lender.  Lessor
shall be  responsible  for payment of all expenses  incurred in connection  with
performing Lessor's Expansion Work including, but not limited to, preparation of
working  plans and  specifications.  In the event  that,  for any reason  beyond
Lessor's  reasonable  control,  Lessor  shall not be able to  obtain a  building
permit to accomplish  Lessor's Expansion Work and/or a building permit is issued
but for less than the full amount of the  proposed  expansion,  Lessee shall not
have any right to terminate  this Lease and the only  consequence to the parties
shall be that the Base Rent shall be adjusted as provided in Section 1.5.3 above
based  upon  the  actual  rentable  floor  area of the  Building  at the time of
Substantial  Completion.  Lessor has agreed to hire Lessee's general  contractor
for the purpose of having a single contractor  coordinate the  accomplishment of
Lessee's Work and Lessor's  Expansion Work.  Lessor shall not be responsible for
any delays  attributable to Lessee's  contractor's  failure properly to schedule
and coordinate the work; provided,  however, delays caused by Lessor, including,
but not limited to,  Lessor's  failure timely to cooperate with the  application
for a building permit, shall extend the Rent Commencement Date.

         53. Delivery of Financial Statements. Within 30 days following Lessor's
request  therefor,  Lessee  shall  deliver  to  Lessor a copy of  Lessee's  most
recently prepared audited financial statement. Within 20 days following Lessor's
written request therefor,  Lessee shall deliver to Lessor Lessee's most recently
prepared  unaudited  financial  statement as maintained by Lessee for the period
commencing at the beginning of the then-current fiscal year. As used herein, the
term  "financial  statement"  shall mean a detailed  balance  sheet and detailed
statement of income and expenses prepared in accordance with generally  accepted
accounting  principals and otherwise in the manner Lessee  customarily  prepares
such documents.

                                       13
<PAGE>

         54.  Interpretation.  Except as the  context  may  otherwise,  require,
references  to "the  Lease" or "this  Lease"  shall  mean  collectively  (1) the
Standard Commercial/Industrial Single-Tenant Lease - Net dated June 13, 1997, by
and between  Lessee and Lessor and all  Exhibits  attached  thereto and (2) this
Addendum.

Lessor:                                           Lessee:
LMC-Sorrento Investment Company,                  Agouron Pharmaceuticals, Inc.,
LLC, a California Limited                         a California Corporation
Liability Company



By /s/ Lee M. Chesnut                             By /s/ Glenn Zinser
   -----------------------------                  ------------------------------
   Lee M. Chesnut, Manager                        Print Name Glenn Zinser
                                                  Title VP, Operations


                              Schedule of Exhibits

                  1 - Subordination, Non-Disturbance and Attornment Agreement

                  2 - Site Plan

 
                                     14


                                                                  EXHIBIT 10.40

          PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED (DESIGNATED BY AN
             ASTERIX (*) AND WHITE SPACE) AND FILED SEPARATELY WITH
              THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A
                    REQUEST FOR CONFIDENTIAL TREATMENT DATED
                        AUGUST 21, 1997; FILE NO. 0-15609



                                    VIRACEPT
                              (NELFINAVIR MESYLATE)

                                LICENSE AGREEMENT

                                     BETWEEN

              AGOURON PHARMACEUTICALS, INC. AND JAPAN TOBACCO INC.

                                       AND

                            F. HOFFMANN-LA ROCHE LTD









                                  June 30, 1997


<PAGE>

<TABLE>
<CAPTION>

                                                                                   
                                TABLE OF CONTENTS

                                                                                                        Page No.
<S>                 <C>

BACKGROUND          .........................................................................................1


ARTICLE I           DEFINITIONS..............................................................................2

Section 1.01        Affiliate................................................................................2
Section 1.02        Agouron/JT Patent Rights.................................................................2
Section 1.03        Agouron/JT Technology....................................................................2
Section 1.04        Combination Product......................................................................2
Section 1.05        Compound.................................................................................3
Section 1.06        Control, Controlled or Controlling.......................................................3
Section 1.07        D&L Agreement............................................................................3
Section 1.08        Development Program......................................................................3
Section 1.09        Development Program Patent Rights........................................................3
Section 1.10        Development Program Technology...........................................................4
Section 1.11        Dossier..................................................................................4
Section 1.12        Effective Date...........................................................................4
Section 1.13        EMEA.....................................................................................4
Section 1.14        Field....................................................................................4
Section 1.15        Initial Commercial Sale..................................................................4
Section 1.16        Licensed Territory and Asian Licensed Territory..........................................4
Section 1.17        MAA......................................................................................5
Section 1.18        Major European Country...................................................................5
Section 1.19        Net Sales................................................................................5
                    (a)    Adjusted Gross Sales..............................................................5
                    (b)    Net Sales.........................................................................5
Section 1.20        Patent Rights............................................................................5
Section 1.21        Product..................................................................................5
Section 1.22        Registration.............................................................................5
Section 1.23        Roche Technology.........................................................................6
Section 1.24        Territory................................................................................6
Section 1.25        Trade Dress..............................................................................6
Section 1.26        Trademark(s).............................................................................6

ARTICLE II          COMMERCIAL RIGHTS........................................................................6

Section 2.01        License Grants...........................................................................6
Section 2.02        Indications of the Compound and/or Products Outside of the Field.........................8
Section 2.03        Diligent Efforts to Market...............................................................8
Section 2.04        Discontinuance of the Development Program................................................9


                                                                       i
<PAGE>

<S>                 <C>
                                                                                                        Page No.

ARTICLE III         SHARING AND PROTECTION OF INTELLECTUAL PROPERTY.........................................10

Section 3.01        Patents.................................................................................10
Section 3.02        Infringement of Patents of Third Parties................................................13
Section 3.03        Trademarks..............................................................................15
Section 3.04        Information Exchange....................................................................15
Section 3.05        Confidentiality.........................................................................16
Section 3.06        Publication.............................................................................17

ARTICLE IV          MANAGEMENT STRUCTURE OF COLLABORATION...................................................18

Section 4.01        Coordination..............................................................................
Section 4.02        Development and Registration; Responsibility for Development Costs......................18
Section 4.03        Marketing...............................................................................20
Section 4.04        Supply of Product.......................................................................22

ARTICLE V           LICENSE FEES AND ROYALTIES; GENERAL LICENSING                                        TERMS     25

Section 5.01        License Fees and Royalties..............................................................25
Section 5.02        General Licensing Terms.................................................................28
Section 5.03        Foreign Currency........................................................................32

ARTICLE VI          TERM AND TERMINATION....................................................................33

Section 6.01        Termination for Breach..................................................................33
Section 6.02        Termination by Roche....................................................................33
Section 6.03        Termination by Mutual Agreement.........................................................35
Section 6.04        Termination Upon Bankruptcy.............................................................35
Section 6.05        Disposition of Inventory................................................................35
Section 6.06        Effect of Termination...................................................................35

ARTICLE VII         WARRANTIES, COVENANTS; INDEMNITIES; INSURANCE; DISPUTE RESOLUTION; GOVERNMENTAL 
                    APPROVALS; EXPORT CONTROLS..............................................................36

Section 7.01        Warranties and Covenants................................................................36
Section 7.02        Indemnities; Insurance..................................................................36
Section 7.03        Dispute Resolution......................................................................38
Section 7.04        Governmental Approvals..................................................................39
Section 7.05        U.S. Export Controls....................................................................39

ARTICLE VIII        DISCLOSURE OF AGREEMENT.................................................................39

Section 8.01        Disclosure of Agreement.................................................................39


                                                                       ii
<PAGE>
<S>                 <C>  



ARTICLE IX          GENERAL PROVISIONS......................................................................40

Section 9.01        No Implied Licenses.....................................................................40
Section 9.02        No Waiver...............................................................................40
Section 9.03        Severability; Government Acts...........................................................40
Section 9.04        Ambiguities.............................................................................40
Section 9.05        Notification of Authorities.............................................................40
Section 9.06        No Agency...............................................................................40
Section 9.07        Captions; Number; Official Language.....................................................41
Section 9.08        Force Majeure...........................................................................41
Section 9.09        Amendment...............................................................................41
Section 9.10        Applicable Law..........................................................................41
Section 9.11        Notices.................................................................................42
Section 9.12        Assignment..............................................................................42
Section 9.13        Succession..............................................................................42

                                   APPENDICES
Schedule 1        Agouron/JT Patent Rights                                                                S1-1
Schedule 2        Asian Licensed Territory                                                                S2-1
Schedule 3        Nelfinavir Mesylate Clinical Studies                                                    S3-1
                           Results to be Contained in the MAA                                             S3-1
                           Interim Results to be Contained in the MAA                                     S3-2
                           Results to be Provided Later                                                   S3-3
Attachment 1      Trademark License                                                                       A1-1
Attachment 2      Product Manufacturing Specifications                                                    A2-1

</TABLE>

                                                                       iii
<PAGE>


         This    VIRACEPT(TM)1    (nelfinavir    mesylate)   License   Agreement
("Agreement"),  dated for reference purposes only this 30th day of June 1997, is
by and among Agouron  Pharmaceuticals,  Inc., a corporation  duly  organized and
existing under the laws of the state of California,  having a principal place of
business at 10350 North Torrey Pines Road, La Jolla,  California,  United States
of America  (hereinafter  referred  to as  "Agouron"),  Japan  Tobacco  Inc.,  a
corporation  duly  organized  and existing  under the laws of Japan,  having its
principal place of business at JT Building,  2-1, Toranomon 2-chome,  Minato-ku,
Tokyo, Japan (hereinafter  referred to as "JT"), and F. Hoffmann-La Roche Ltd, a
corporation  duly organized and existing under the laws of  Switzerland,  having
its  principal  place of business  at  CH-4002-Basel,  Switzerland  (hereinafter
referred to as "Roche").  Agouron,  JT and Roche are each sometimes  hereinafter
referred to as a party (collectively "parties") to this Agreement.

                                   BACKGROUND

         On December  1, 1994,  Agouron and JT entered  into a  Development  and
License  Agreement ("D&L  Agreement")  under which they have collaborated in the
development and  commercialization of the chemical compound known as "nelfinavir
mesylate"  (sometimes  referred  to herein as  "VIRACEPT")  to treat and prevent
Human Immunodeficiency Virus infections.

         On January 17,  1997,  Agouron,  JT and Roche  entered into a Letter of
Intent  ("LOI")  pursuant to which  Agouron and JT granted a license to Roche to
sell nelfinavir  mesylate  products to treat and prevent Human  Immunodeficiency
Virus  infections in certain  countries of the world on terms  substantially  in
accordance  with those  contained in Exhibit A to the LOI ("Exhibit  A").  While
Exhibit A states the basic terms of the understanding  between the parties,  the
parties  agreed  that  the  full  license  terms  would be  subject  to  further
negotiation and preparation of a further agreement  containing the full terms of
the license between the parties.  This Agreement is entered into for the purpose
of setting  forth the  definitive  terms  under  which Roche is licensed to sell
nelfinavir mesylate products to treat and prevent Human  Immunodeficiency  Virus
infections in certain countries of the world.

         NOW,  THEREFORE,  in  consideration  of the  premises,  and the  mutual
covenants,  benefits and  obligations  set forth  herein,  the parties  agree as
follows:

- --------
1 VIRACEPT is a trademark of Agouron Pharmaceuticals, Inc., and is registered in
the United States and in certain other countries.

                                       1
<PAGE>

                             ARTICLE I - DEFINITIONS

         When used in this Agreement, each of the following terms shall have the
meanings set out in this  Article I. All  references  to Articles,  Attachments,
Sections and Schedules shall, except as otherwise explicitly provided,  refer to
the  Articles,  Attachments,  Sections and Schedules of this  Agreement,  all of
which are incorporated herein by reference.

         Section 1.01 "Affiliate" means any person, organization or entity which
is, directly or indirectly,  controlling, controlled by, or under common control
with Roche,  Agouron or JT, as the case may be. The term  "control"  (including,
with correlative  meaning,  the terms  "controlled by" and "under common control
with"),  as used with  respect to any person or  entity,  means the  possession,
directly or indirectly,  of the power to direct,  or cause the direction of, the
management and policies of such person,  organization or entity, whether through
the ownership of voting securities,  or by contract or court order or otherwise.
The  ownership of voting  securities of a person,  organization  or entity shall
not, in and of itself,  constitute  "control"  for purposes of this  definition,
unless said ownership is of a majority of the outstanding securities entitled to
vote of such a person,  organization or entity.  For purposes of this Agreement,
Genentech,  Inc.  shall be  considered  to be an  Affiliate  of  Roche,  and the
government of Japan shall not be considered to be an Affiliate of JT.

         Section 1.02      "Agouron/JT Patent Rights" means:  *








         Section 1.03      "Agouron/JT Technology" *







         Section 1.04      "Combination Product" means *



                                       2
<PAGE>


         Section 1.05      "Compound" means the chemical compound known as 
nelfinavir mesylate whose chemical name is as follows:
        
           [3S-(3R*, 4aR*, 8aR*, 2'S*, 3'S*)]-2-[2'-hydroxy-3'-phenylthiomethyl-
           4'-aza-5'-oxo-5'-(2"-methyl-3"-hydroxyphenyl)pentyl]-
           decahydroisoquinoline-3-N-t-butyl carboxamide methanesulfonic acid 
           salt

and whose chemical structure is as follows:

                  [GRAPHIC OMITTED]

         Section 1.06      "Control," "Controlled" or "Controlling" *



         Section 1.07      "D&L Agreement" means the December 1, 1994 
Development and License Agreement between Agouron and JT, as amended.
      
         Section 1.08      "Development Program" *











         Section 1.09      "Development Program Patent Rights" *






                                       3
<PAGE>











         Section 1.10      "Development Program Technology" *










         Section  1.11  "Dossier"  means the  document  which is filed  with and
approved by a government or health authority for purposes of  Registration,  for
example, a Marketing Authorization Application.

         Section 1.12 "Effective Date" means January 17, 1997.

         Section  1.13 "EMEA" means the European  Agency for the  Evaluation  of
Medicinal Products.

         Section  1.14  "Field"  means the  treatment  and  prevention  of Human
Immunodeficiency Virus ("HIV") infections.

         Section 1.15      "Initial Commercial Sale" means the first commercial 
sale of a Product in the Field *
        
         Section 1.16 "Licensed  Territory" and "Asian Licensed Territory" shall
have the following meanings:

                                       4
<PAGE>

         (a) "Licensed  Territory"  means all countries of the world  (including
all countries  included in the "Asian  Licensed  Territory"  as defined  below),
except for the United States (and its territories, possessions and protectorates
(including Puerto Rico), and the District of Columbia),  Canada,  Mexico,  Japan
(other  than those  areas in Japan in which  Roche is granted  and  accepts  the
commercialization rights described in Schedule 2), South Korea and North Korea.

         (b)      "Asian Licensed Territory" means all the countries of Asia 
listed on Schedule 2.

         Section 1.17      "MAA" means Marketing Authorization Application

         Section 1.18      "Major European Country" means *


         Section  1.19 "Net Sales" and the related term  "Adjusted  Gross Sales"
shall have the following meanings:

         (a)      "Adjusted Gross Sales" means *







         (b)      "Net Sales" means *






         Section 1.20      "Patent Rights" means, collectively, *


         Section 1.21      "Product" means *



         Section  1.22  "Registration"   means  the  official  approval  by  the
government or health  authority in a country (or  supra-national  organizations,
such as the European  Agency for the  Evaluation of Medical  Products)  which is
required for a Product to be offered for sale in such  country,  including  such
authorizations  as may be required  for the  production,  importation,  

                                       5
<PAGE>

pricing,  reimbursement and sale of such Product, and for subsequent  regulatory
filings for line extensions and/or additional indications of such Product.

         Section 1.23      "Roche Technology" means *







         Section 1.24      "Territory" means *

         Section  1.25  "Trade  Dress"  means  any  materials   supporting   the
commercialization  of a  Product,  including,  but not  limited  to,  packaging,
package inserts,  advertising or selling aids, brochures,  mailings and/or other
marketing or packaging materials.

         Section 1.26 "Trademark(s)" means any trademark selected and owned by a
party and  registered  (or applied  for) by such  party,  its  Affiliate(s)  and
sublicensee(s)  in the  Territory  for use in  connection  with the marketing of
Products.  The definition of Trademark(s) shall not refer to trade names used by
a party to designate the name of such party.

                         ARTICLE II - COMMERCIAL RIGHTS

         Section 2.01 License Grants. To implement the  commercialization of the
Compound and/or Products  arising out of the Development  Program,  the parties,
subject to the other applicable obligations of this Agreement,  grant and accept
the license rights provided below in this Article II.

         (a)      *






         (b)      *







                                       6
<PAGE>

         (c)      *





         (d)      *




         (e)      *




         (f)      *






         (g)      *












         (h)      *









                                       7
<PAGE>



         (i)      *





         (j)      *













         Section 2.02 Indications of the Compound and/or Products Outside of the
Field.

         (a) Subject to the provisions of the D&L Agreement,  except as provided
in Section 2.02(b), Agouron and JT, in their sole discretion,  shall be entitled
to make,  use,  develop and  commercialize  the  Compound  and/or  Products  for
indications outside of the Field in the Territory.

         (b)      *




         Section 2.03      Diligent  Efforts to Market.  As provided  below, the
right of Roche to market  Products  in the Field in a country  located in the
Licensed Territory shall be subject to diligent marketing efforts by Roche.  *
                                                        Roche,   using  diligent
marketing efforts, agrees to provide sales and other promotional support *
        that is equivalent to or greater than that which Roche,  its  Affiliates
and/or  sublicensees  are then providing for  saquinavir in such country.  After
such * Roche shall  provide a  reasonable  level of sales and other  promotional
support  for a Product in a country  which,  when  measured as

                                       8
<PAGE>

a  percentage  of  Adjusted  Gross  Sales of such  Product in such  country,  is
equivalent  to  or  greater  than  that  which  Roche,  its  Affiliates   and/or
sublicensees are then providing *

                             If, after *                          written  
notice of the  failure by Roche to provide  the agreed  upon level of sales
and other promotional support for a Product in a country located in the Licensed
Territory,  Roche  fails to fulfill  its  obligation  under this  Section  2.03,
Agouron and JT shall have the right, *











         Section 2.04      Discontinuance of the Development Program.

         (a)      Roche shall, in a timely manner,  use reasonable  diligence in
the development and Registration of a Product in the Field in the countries of
the Licensed Territory.  *


                                                                     If, after *
                                    written  notice  of the  failure  by  Roche 
to use  reasonable  diligence,  in a  timely  manner,  in the  development  and
Registration  of a Product  in the Field in a country  located  in the  Licensed
Territory,  Roche fails to fulfill its obligations  under this Section  2.04(a),
such failure shall be deemed to be an election by Roche *
















                                       9
<PAGE>




         (b)      *

























          ARTICLE III - SHARING AND PROTECTION OF INTELLECTUAL PROPERTY

         Section 3.01      Patents.

         (a)      *









                                       10
<PAGE>


                  (i)      *











                  (ii)     *













                  (iii)    *











                  (iv)     Notwithstanding the preceding, *






                                       11
<PAGE>





         (b) The preparation, filing, prosecution,  maintenance and extension of
patent  applications  and issued patents  included within the Agouron/JT  Patent
Rights shall be conducted in accordance  with and governed by the  provisions of
the D&L Agreement; provided, however, that an *

                                                                 Ownership 
of the Agouron/JT  Patent Rights shall be determined in accordance  with the
provisions of the D&L  Agreement;  provided,  however,  that the parties  hereby
acknowledge that, in accordance with the provisions of *



                                                      (including expenses for 
the preparation, filing, prosecution and maintenance of patent term restoration
applications and supplemental protection certificates,  but excluding any travel
expenses  of the  parties,  which  shall be borne by the  party  incurring  such
expenses).

         (c)      A representative of Roche and an authorized representative of 
Agouron and JT shall *
to review and discuss  the actions  taken or to be taken by each of the parties
in protecting  the commercial  interests of the parties in  Development  Program
Patent Rights. Such meetings may be conducted in person or by means of telephone
conference  calls.  Each party shall pay its own costs of  participating in such
meetings.  Prior to or  immediately  after  the  filing  of the  initial  patent
application  for an  invention,  the filing party shall  provide the  authorized
representatives  of the other  parties with an English  language  version of the
patent application for the non-filing  parties' review and comment. If requested
by a non-filing party, the filing party shall also provide such non-filing party
with a full copy of each patent application actually filed in English and in the
language in which it was originally  filed. It is the intent of the parties that
any patent  issuing to the parties  hereunder  shall be of the same  quality and
scope  that the party  would have  sought  with  respect  to its other  valuable
proprietary  property not subject to this  Agreement.  Each of the parties shall
annually  prepare  a list  which  reflects,  to the best of its  knowledge,  the
current  status of any  Development  Program Patent Rights for which it controls
the preparation, filing, prosecution, maintenance and/or extension of the patent
applications  and issued  patents,  which list shall be  submitted  to the other
parties within sixty (60) days after the end of the calendar year. An authorized
representative  of Agouron and JT shall annually  prepare a list which reflects,
to the best of their  knowledge,  the current  status of the  Agouron/JT  Patent
Rights.  For purposes of this Section 3.01, Agouron and JT shall be deemed to be
a single party. The parties, if they so elect, may mutually prepare a joint list
to satisfy the preceding obligations.

                                       12
<PAGE>

         (d)      *




         (e)      *










         (f)      *


















         Section 3.02      Infringement of Patents of Third Parties.

         (a) Each party, its Affiliates and  sublicensees,  and their respective
employees and agents shall use diligent efforts to avoid infringement of patents
of any third party in discovering, developing, manufacturing and commercializing
the Compound,  intermediates  thereof and/or  Products.  However,  a party,  its
Affiliates and sublicensees, and their respective employees and agents shall not
be  liable  to  another  party,  its  Affiliates  and  sublicensees,  and  their
respective employees and agents if the practice of the Patent Rights, Agouron/JT
Technology,   Roche  

                                       13
<PAGE>

Technology,  and/or Development  Program Technology in discovering,  developing,
manufacturing  or  commercializing  the Compound,  intermediates  thereof and/or
Products infringe any patent of any third party. If a party becomes aware of any
claim or suit by any third  party  for  infringement  of a patent of such  third
party in connection with the discovery, development, manufacture, use or sale of
the Compound,  intermediates  thereof  and/or  Products by a party hereto,  such
party  shall  notify the other  parties in writing of such claim or suit  within
thirty  (30) days  thereafter.  Each  party  agrees to  render  such  reasonable
assistance  as the other  party(s)  may request in  defending  any such claim or
suit.  The parties  shall  mutually  agree to any  settlement of any existing or
potential  infringement  claim or action  that would  require the payment of any
royalty or lump sum payment to a third party,  except that if the parties cannot
promptly reach  agreement,  they shall appoint an independent  patent counsel to
give an opinion, which shall be binding on the parties, as to whether there is a
substantial risk that the third party patent is both valid and infringed. If the
opinion  is that there is a  substantial  risk that the patent is both valid and
infringed,  the marketing  party of a Product in a country,  after  consultation
with the other  parties,  may settle the matter in its sole  discretion  on such
terms as it deems  appropriate.  If more than one party is  participating in the
marketing of a Product in a country,  the marketing parties shall mutually agree
to any  settlement  of any  infringement  claim or action that would require the
payment of any royalty or lump sum payment to a third party;  if the parties are
unable to mutually agree on the  settlement,  then the issue shall be decided by
binding arbitration in accordance with the provisions of Section 7.03 hereof.

         (b)      *







                        The parties  acknowledge that the manufacture and/or use
of certain materials or processes used in the manufacture of the Product *


                                       (iii) that the provisions of this Section
3.02 do not apply to *


                                      If royalties to third parties are due 
because of the  manufacture and/or use of certain materials or processes used in
the  manufacture  of the Product and such  royalties are measured by Roche's Net
Sales of such Product,  then such royalties  shall not be payable by Roche prior
to  the  date  of  sale  of  such  Product.  The  parties  further  specifically
acknowledge that license fees and/or royalties may be owed to third parties *


           Notwithstanding the preceding, *

                                       14
<PAGE>

                                              which are then being  commercially
used in the  manufacture  of the Product,  the parties  shall discuss in good
faith the sharing of such costs as provided above, versus changing the method of
manufacture of the Product.

         Section 3.03      Trademarks. A party, its Affiliates and sublicensees,
if any, *




                                                               it is the intent 
of the parties that a single  Trademark be identified  and developed for use in
connection with marketing of Products in the Field wherever possible  throughout
the Territory. The parties acknowledge that, while Agouron has already selected,
filed and owns the VIRACEPT  Trademark  application  and/or Trademark in certain
countries  of the  Territory,  it is  nevertheless  their  intention  to use the
VIRACEPT  Trademark in  connection  with the  marketing of Products in the Field
wherever  possible.  If  required by the laws of a specific  country,  the party
owning  the  Trademark  shall  assist  the other  party(s)  in  qualifying  as a
registered user of such Trademark in such country. *






             Additionally, the parties agree to cooperate with the other parties
in  reasonable  efforts to protect  the  rights of the  parties in a  Trademark,
including  notification  of  any  infringement  which  may  come  to  a  party's
attention,  and the proper  execution and filing of appropriate  registered user
documents. *





         Section 3.04      Information Exchange.  *











                                       15
<PAGE>



         Section 3.05  Confidentiality.  Except as otherwise expressly specified
in this  Agreement  and except for the proper  exercise  of any  license  rights
granted or rights  reserved under this  Agreement,  Roche,  Agouron and JT shall
each  keep in  confidence  and  shall  each use its best  efforts  to cause  its
respective  Affiliates,  employees,  directors,  agents,  consultants,  clinical
research   associates,   outside   contractors,   clinical   investigators   and
sublicensees  to whom it is  permitted to disclose  information  pursuant to the
terms of this  Agreement  to  retain in  confidence:  (i) all  confidential  and
proprietary information of the other party, including *
                                                         and/or the  marketing 
and business  plans of such other party that is disclosed to it  hereunder;  and
(ii) Development  Program  Technology.  Without  limiting the foregoing,  Roche,
Agouron and JT shall each  exercise the same degree of  diligence  and care with
respect to the  above-described  information as it exercises with respect to its
other proprietary  information.  Each party represents to the other parties that
it  maintains  policies  and  procedures  designed to prevent  the  unauthorized
disclosure of its proprietary data and information. Roche further agrees that it
shall: (i) limit dissemination of and access to the confidential and proprietary
information of Agouron and JT within Roche's  organization to those of Roche and
its Affiliates' personnel who have a need to know the information;  and (ii) not
disclose such  confidential and proprietary  information to any employees of any
of its  Affiliates if such Affiliate is doing business in a country not included
in the Licensed Territory, unless an authorized representative of Agouron and JT
specifically  authorizes  in writing such  disclosure,  and the employees of the
Affiliate receiving such information agree in writing not to disclose or use any
such  information  disclosed  to them  other  than for the  performance  of this
Agreement  and the  proper  exercise  of any  license  rights  granted to Roche.
Agouron and JT agree to limit  dissemination  of and access to confidential  and
proprietary   information  of  Roche  concerning  INVIRASE  to  Agouron  and  JT
personnel,  and their respective Affiliates' personnel,  who have a need to know
the  information.  Roche,  Agouron and JT shall each be entitled to disclose the
above-described  information to its consultants,  clinical research  associates,
outside  contractors,  collaborators,  clinical  investigators  and other  third
parties who are subject to  confidentiality  and use  obligations  equivalent to
those applicable to the disclosing party hereunder, and to governmental or other
regulatory  and/or  health  authorities,  to the extent that such  disclosure is
reasonably  necessary to obtain patents,  to obtain  authorization or to conduct
clinical  trials on the  Compound or Products,  to prepare the  Dossier,  and/or
otherwise to fulfill its obligations  pursuant to this Agreement.  An authorized
representative  of Agouron and JT shall be responsible,  in its sole discretion,
for  authorizing  the supply of any drug samples of the Compound and/or Products
to third party researchers.  Roche,  Agouron and JT shall each have the right to
disclose  Development  Program  Technology  to persons it proposes to enter into
business  relationships  with,  if such  persons are subject to  confidentiality
obligations  equivalent to those  applicable to the disclosing  party hereunder.
The preceding  obligations of confidentiality  shall be waived as to information
which the party claiming waiver can demonstrate,  based on written records:  (i)
is in the public domain at the time of disclosure hereunder; (ii) comes into the
public domain through no fault of the party claiming waiver;  (iii) was known to
the party claiming waiver prior to its disclosure  under this Agreement,  unless
such information was obtained from the other 

                                       16
<PAGE>

party on a confidential basis; (iv) is disclosed on a non-confidential  basis to
the party  claiming  waiver by a third party  having a lawful right to make such
disclosure on a  non-confidential  basis; (v) is published with the prior mutual
agreement  of the  parties  after  having  given  consideration  to  appropriate
commercial  factors;  (vi)  comes into the public  domain  through  governmental
publication  of a patent  application;  or (vii) is required to be  disclosed to
file a patent or other regulatory application, or to comply with applicable laws
and  regulations.  The obligations  under this Section 3.05 shall survive to the
later  of:  (i) *         after  the  end of  the  Development  Program;  or  
(ii) the  termination or expiration date of the last to expire of any license(s)
granted  pursuant  to this  Agreement,  to the  extent the  Development  Program
Technology,  Agouron/JT  Technology  or Roche  Technology  is  applicable to the
practice of grants under such  license(s);  or (iii) the expiration  date of the
last to expire of any patent(s) within the Patent Rights on a Product.

         Section 3.06 Publication.  Agouron,  JT and Roche each acknowledges the
interests of the other  parties in  publishing  certain of their  results of the
development  and  Registration  of a Product  to obtain  recognition  within the
scientific  community  and to advance  the state of  scientific  knowledge.  The
parties  also  recognize  their  mutual  interests  in  obtaining  valid  patent
protection  for their drug  products.  Consequently,  a party,  its employees or
consultants *





Furthermore, in acknowledgment that certain *

the parties agree that each party shall *








                                                                           After
giving   reasonable   consideration  to  the  suggestions  of  the
objecting party, the party wishing to *
                                                                       Each  
party will use its reasonable efforts to inform the other parties about proposed
oral  presentations  which such party  intends to make, if it will be disclosing
new  scientifically   significant  data  concerning  the  Product  at  the  oral
presentation.

                                       17
<PAGE>

               ARTICLE IV - MANAGEMENT STRUCTURE OF COLLABORATION

         Section 4.01 Coordination. Coordination of the parties' development and
commercialization  efforts  for the  Compound  and  Products in the Field in the
Licensed Territory shall be carried out as specified in Sections 4.02 and 4.03.

         Section  4.02   Development  and   Registration;   Responsibility   for
Development Costs.  Roche,  Agouron and JT acknowledge their mutual intention to
cooperate in a commercially reasonable approach in the timely development of the
Compound  and  Products  in the Field in the  Licensed  Territory.  The  parties
further  acknowledge  their mutual  willingness  to discuss ad hoc agreements to
establish   appropriate   mechanisms  for  such  cooperation.   Recognizing  the
importance  of timely  initiation of  development  activities,  however,  Roche,
Agouron and JT agree to the following  basic approach to development of Products
in the Field in the Licensed Territory,  and to the conduct and funding of their
respective development activities.

         (a) Except as otherwise agreed to by the parties,  Agouron and JT shall
be responsible for completing,  in a reasonable  manner, and funding the studies
*                     these studies include the core development program studies
designed to achieve Registration of Products in the Field in the major countries
of the Licensed Territory.  The parties acknowledge that Agouron and JT, despite
reasonable diligence,  may be unable to complete *






         (b)      In collaboration with Roche, Agouron shall be responsible *

                                                                           and 
shall have the primary responsibility for the *








                                                                       for  the 
ongoing   correspondence  and  interaction  concerning  such  Product  with  the
applicable  regulatory  authorities  of  the  European  Union.  Roche  shall  be
responsible for  negotiating  pricing and  reimbursement  for a Product with the
regulatory authorities of the European Union.

         (c)      *         shall be responsible for making in a timely manner 
any alterations to the 
*                 which are required for *

                                       18
<PAGE>

                                      Except as otherwise agreed to by the
parties, Roche shall be responsible for *







         (d)      Roche shall be responsible for *
(other than those *                 ) which involve *

                                      ).  Roche shall be responsible for the *


         (e) Subject to the  availability  of  adequate  drug supply of Product,
Roche  shall  be  responsible  for the  cost  and  implementation  (possibly  in
cooperation with a previously  contracted contract research  organization) of an
expanded  access program for Products in  appropriate  countries of the Licensed
Territory,  including  specifically the countries located in Europe,  Australia,
New Zealand and Brazil,  which  expanded  access  program shall be consistent in
scope with the expanded access program  implemented by Agouron in North America.
Agouron and JT will reasonably  consider Roche's request to conduct a portion of
the expanded  access program as a program  involving  special  license sales, if
such  request  does not  interfere  with the parties  relationship  with the HIV
community  and/or  government  authorities  and does not require a change in the
formulation (clinical versus commercial  formulations) of drug product otherwise
allocated to the expanded access program.

         (f)      *







         (g) Each  party  shall be  entitled  to have the  government  or health
authorities  cross-reference  information contained in any Dossier for a Product
filed in any  country  in the  Territory,  as may be  necessary  to  obtain  and
maintain the Registration on a Product in any other country in the Territory.

         (h) Each party agrees to use its diligent  efforts in  responding  in a
timely  manner,  but not more than thirty (30) days,  to requests from the other
party for preclinical and clinical results and other information  concerning the
Development  Program  to  enable  the  other  party to  comply  with  regulatory
requirements for the Development  Program.  To the extent possible,  the parties

                                       19
<PAGE>

shall develop and use compatible  reporting forms in the clinical  studies aimed
at achieving  Registration of Products in the Field. A party  conducting a study
involving the Product shall assist the other parties in the incorporation of the
data from such study into their Dossiers, if necessary.

         (i) Roche shall keep  Agouron  and JT  informed of its  progress in the
development and  Registration of Products.  This shall include,  *       regular
meetings of the parties,  and such written  progress reports as are agreed to by
the parties which summarize Roche's  activities during each reporting period and
Roche's planned  activities for the succeeding  period. The meeting locations of
the parties shall be at sites agreed to by the parties. Meeting minutes shall be
promptly  prepared and  approved by  designated  representatives  of each of the
parties.  Each party shall pay all of its respective expenses for such meetings.
Agouron and JT shall keep Roche informed of their  development and  Registration
activities to the extent that such development and  Registration  activities are
relevant  to the  development  and  Registration  of  Products  by  Roche in the
Licensed Territory. Each of the parties shall *
                                                               each  
representative  shall report to his/her management on the matters discussed at 
each of the meetings of the parties.  Each party, prior to its implementation  
of a *
                                                               shall use its
reasonable efforts to provide the other parties with a copy of the *
manner, but not more than thirty (30) days, *


                                                   Roche agrees to use its 
diligent efforts in responding in a timely manner, but not more than *
to requests from Agouron or JT for information *

         (j)      Roche, Agouron and JT shall each use qualified persons in the 
development activities of the Development Program.

         (k) All work in  connection  with the  development  of the  Compound or
Products,  to the extent required by applicable  laws or  regulations,  shall be
conducted in  accordance  with Good  Laboratory  Practices,  Good  Manufacturing
Practices  and Good  Clinical  Practices,  as such rules of practice are amended
from time to time.

         (l) If a party is  conducting  a study in a country  located in another
party's marketing  territory,  the party conducting the study shall use its best
efforts to avoid interfering with such other party's activities in such country.

         Section 4.03 Marketing. Roche shall be responsible for the marketing of
Products in the Field in the Licensed Territory.  Roche, Agouron and JT agree to
the  following  basic  approach to the marketing of Products in the Field in the
Licensed Territory and to the conduct of their respective marketing activities.

                                       20
<PAGE>

         (a)      *

                                                                          Roche
shall modify the        *         only to the extent required to respond to 
country-specific needs, and implement *


Agouron, JT and their licensees *



         (b) Roche shall be  responsible  for  distribution  of a Product in any
countries located in the Licensed Territory where Roche is exclusively marketing
such Product in the Field.

         (c)      Roche shall keep Agouron and JT informed of Roche's *
                             This shall include, *                              
the regular  meetings of the parties,  and such written  progress reports as
are agreed to by the parties  which  summarize  Roche's  activities  during each
reporting period and Roche's planned  activities for Products for the succeeding
period.  The meeting locations of the parties shall be at sites agreed to by the
parties.  Meeting  minutes  shall  be  promptly  prepared  and  approved  by the
designated representatives of each of the parties. Each of the parties shall pay
all of its respective expenses for such meetings. Each of the parties shall *
                            each  representative  shall report to his/her  
management on the matters discussed at the meetings of the parties.  At the 
meetings of the parties, the representatives of the parties shall review and 
discuss *






         (d) It is the intent of the  parties  that the  VIRACEPT  Trademark  be
identified and developed for use in connection with the marketing of Products in
the Field wherever  possible  throughout the Territory.  Unless otherwise agreed
and as permitted by law, Roche agrees to market  Products in the Field under the
VIRACEPT brand name in all countries in the Licensed Territory. The parties also
acknowledge  their  intention  to use, if  appropriate,  the same Trade Dress in
connection with the marketing of Products in the Field wherever possible.

         (e) In countries where Roche is exclusively  marketing a Product in the
Field,  unless  prohibited by law or  regulation,  the labeling for such Product
shall state that the Product is licensed  from Agouron and JT, and indicate that
the Product is a product of the joint  development of Agouron,  JT and Roche. To
the extent required to comply with the provisions of this Section 4.03(e),  each
party  grants  to the other  parties  the right to use its name and logos in the
labeling for a Product.

                                       21
<PAGE>

         (f)      Roche shall use qualified persons in its marketing activities 
for a Product in a country located in the Licensed Territory.

         (g) Roche shall be responsible for responding,  in a timely manner,  to
inquiries and for  reporting  adverse drug  reactions  related to a Product in a
country located in the Licensed  Territory after the Product is on the market in
the Field in such country.  Notwithstanding  Roche's ultimate responsibility for
the  professional  services  and  the  health  and/or  regulatory   authorities'
communications  related to a Product  after such Product is on the market in the
Field in a country located in the Licensed  Territory,  to the extent reasonably
possible, Agouron and JT shall have the right to review, comment and participate
in  communications  concerning  such Product with the health  and/or  regulatory
authorities in such country.  Furthermore,  Roche,  Agouron and JT shall each be
entitled to respond to routine medical questions or inquiries  directed to them.
Each party  shall use its best  efforts to provide  the other  parties  with all
information  reasonably  necessary to respond  properly and promptly to any such
questions or  inquiries;  the parties  shall also use their best efforts to keep
such information current. Without limiting the foregoing,  Roche, Agouron and JT
*



The parties shall confer with respect to responding to anticipated inquiries and
questions.  Each party shall use its best efforts to promptly  provide the other
parties with new information,  scientific findings,  and summaries of regulatory
or judicial requests  specifically related to a Product, to the extent that such
information, findings or requests are likely to have a significant impact on the
other parties' marketing of such Product.

         Section 4.04      Supply of Product.

         (a) Roche shall purchase from Agouron and/or JT, and Agouron and/or JT,
subject to the provisions of Section 4.04(c), shall use their reasonable efforts
to deliver, the finished dosage form(s) of Product *














                                       22
<PAGE>



         (b) Roche shall  purchase from Agouron and/or JT and Agouron and/or JT,
subject to the provisions of Section 4.04(c), shall use their reasonable efforts
to deliver,  the finished  dosage  form(s) of Product,  for sale in the Licensed
Territory, including special license sales, *








         (c)      Agouron and JT shall maintain books of account and complete 
and accurate records of all of their *














         (d)      *











                                       23
<PAGE>




         (e) Roche shall assist Agouron and JT in the identification of low-cost
manufacturing sources for a Product. Roche shall also provide without charge, to
the extent  available,  technical and  manufacturing  assistance  and use of its
technology  and  proprietary  information  to  Agouron  and JT in an  effort  to
decrease the production costs of such Product.

          (f)  Agouron  and JT agree to  discuss  in good  faith  with  Roche an
arrangement  under which Roche could be the manufacturer of a Product to be used
in the Licensed Territory, including the prerequisite requirement that *











         (g)  All  Product  is  to  be   manufactured  in  accordance  with  the
specifications to be determined during  development and later attached hereto in
Attachment 2 to this Agreement and any amendments thereto.  All Product shall be
furnished with a certificate of analysis.

         (h) Roche shall grant to both  Agouron and JT a right of  reference  to
the drug master file for a Product in the countries where Roche,  its Affiliates
or  sublicensees  are marketing such Product,  and shall take all other steps as
may be reasonably  requested by a  manufacturer  of such Product for the limited
purpose of enabling it to manufacture  the Product for Roche,  its Affiliates or
sublicensees.  The manufacturer  shall  manufacture a Product in compliance with
the Dossier for such  Product.  Each party shall  promptly  and fully advise the
other parties of any changes,  alterations or amendments to the drug master file
for a Product, or any amendments, instructions or specifications required by the
health or regulatory authority, and the parties shall confer with respect to the
best mode of compliance with any such requirements.

         (i) In the event  any  Product  delivered  hereunder  must be  recalled
because of action by the relevant health authority,  the parties shall cooperate
fully with each other in conducting such recall to the full extent  necessary to
ensure that the recall is effective.  Any recall  expenses for such Product in a
country  located in the Licensed  Territory shall be the  responsibility  of the
party marketing the Product.




                                       24
<PAGE>





                     ARTICLE V - LICENSE FEES AND ROYALTIES;
                             GENERAL LICENSING TERMS

         Section 5.01      License Fees and Royalties.

         (a) In partial consideration for the rights granted to Roche by Agouron
and JT, Roche hereby agrees to make the following  non-refundable  license issue
fee payments directly to Agouron and JT.


                                                             USD (MM)

        On January 24, 1997

             To Agouron                                       $  9.0

             To JT                                               9.0




        Within ten (10) days of the execution of this 
        Agreement

             To Agouron                                          2.0

             To JT                                               2.0




        Within thirty (30) days of first regulatory approval
        in a Major European

        Country or upon marketing authorization from the European 
        Commission

               To Agouron                                        11.0

               To JT                                             11.0




        Within thirty (30) days of first regulatory approval
        in a country located in the Asian Licensed Territory  
        or upon marketing authorization in a  country located  
        in the Asian Licensed Territory

               To Agouron                                         1.0

               To JT                                              1.0




                                                TOTAL            46.0


         (b)      In partial consideration for the rights granted each of the 
parties in this Agreement, the parties agree as follows:

                  (i) Roche shall pay Agouron and JT directly,  a royalty  based
         on the Net Sales of Product by Roche, its Affiliates and  sublicensees,
         consolidated  into CHF, in amounts  which equal the greater of: (A) the
         royalty  amounts  calculated  according  to  Royalty  Schedule  1 below
         (Product  only);  or (B) the royalty  amounts  calculated  according to
         Royalty  Schedule 2 below  (Product  and any  formulations  of INVIRASE
         which Roche markets, with royalties being calculated separately for the
         consolidated  annual Net Sales of such Product and  INVIRASE).  Royalty
         Schedule  2 shall  not apply to Net Sales  (including  special  license
         sales)  in a  country  located  in the  Licensed  Territory  until  the
         Registration  of a Product  in such  country.  A sum equal to  one-half
         (1/2) of the  following  royalties  shall be paid by Roche  directly to
         each of Agouron and JT.




                                       25
<PAGE>






                               Royalty Schedule 1




     Royalty Rate                      Consolidated Annual Net Sales Level
     Per Consolidated                  of the Product in Licensed Territory
     Annual Net Sales Level            (other than the Asian Licensed Territory)


               *                             <= *
               *                             > CHF   *         <= CHF *
               *                             > CHF *



plus

     Royalty Rate                       Consolidated Annual Net Sales Level of
     Per Consolidated                   the Product in the Asian Licensed 
     Annual Net Sales Level             Territory


               *                             <= USD   *
               *                             > USD   *         <= USD *
               *                             > USD   *








                               Royalty Schedule 2




                                      Consolidated Annual Net Sales Level for
                                      the Product and INVIRASE in the Licensed
                                      Territory, other than the Asian Licensed
      Royalty Rate                    Territory (With Royalties Being Calculated
      Per Consolidated                Separately for the Consolidated Annual
      Annual Net Sales Level          Net Sales of the Product and INVIRASE)


               *                             <= CHF    *
               *                             > CHF    *         <= CHF *
               *                             > CHF *



plus

                                     Consolidated Annual Net Sales Level for the
                                     Product and INVIRASE in the Asian Licensed
      Royalty Rate                   Territory  (With Royalties Being Calculated
      Per Consolidated               Separately for the Consolidated Annual
      Annual Net Sales Level         Net Sales of the Product and INVIRASE)


                *                             <= USD  *
                *                             > USD  *           <= USD *
                *                             > USD  *




                  (ii) If either: (A) regulatory  approval for the first Product
            is not  obtained  in a  Major  European  Country  prior  to * or (B)
            marketing  authorization  for the first Product is not obtained from
            the European Commission prior to *
            the  royalty  rate for  Royalty  Schedule  2 for the  Licensed
            Territory (other than the Asian Territory) shall be adjusted as 
            follows.




                                       26
<PAGE>







                               Royalty Schedule 2





                                     Consolidated Annual Net Sales Level for
                                     the Product and INVIRASE in the Licensed
                                     Territory (other than the Asian Licensed
         Royalty Rate                Territory) (With Royalties Being Calculated
         Per Consolidated            Separately for the Consolidated Annual Net
         Annual Net Sales Level      Sales of the Product and INVIRASE)


                  *                             <= CHF    *
                  *                             > CHF    *         <= CHF *
                  *                             > CHF    *




                  (iii) If  regulatory  approval  for the first  Product  is not
         obtained in Thailand prior to * and Roche has used reasonable diligence
         in the  development  and  Registration  of a  Product  in the  Field in
         Thailand (including Roche's filing of a regulatory approval application
         in Thailand during * ), the royalty rate for Royalty Schedule 2 for the
         Asian Licensed Territory shall be adjusted as follows.





                               Royalty Schedule 2





                                     Consolidated Annual Net Sales Level for the
                                     Product and INVIRASE in the Asian Licensed
         Royalty Rate                Territory  (With Royalties Being Calculated
         Per Consolidated            Separately for the Consolidated Annual
         Annual Net Sales Level      Net Sales of the Product and INVIRASE)

                  *                             <= USD   *
                  *                             > USD   *          <= USD *
                   *                            > USD   *


                  (iv)     If either:  (A) regulatory approval for the first 
         Product is not obtained in a Major European Country prior to *
         or (B) marketing authorization for the first Product is not obtained 
         from the European Commission prior to
         * Royalty  Schedule 2 for the Licensed  Territory (other than the Asian
         Licensed Territory) shall not apply and Roche shall be obligated to pay
         JT and Agouron directly, royalties according to Royalty Schedule 1 only
         for the Licensed Territory (other than the Asian Licensed Territory).

                  (v) If  regulatory  approval  for  the  first  Product  is not
         obtained in Thailand prior to * and Roche has used reasonable diligence
         in the  development  and  Registration  of a  Product  in the  Field in
         Thailand (including Roche's filing of a regulatory approval application
         in Thailand * Royalty Schedule 2 for the Asian Licensed Territory shall
         not apply and Roche shall be obligated to pay JT and Agouron  directly,
         royalties  according to Royalty  Schedule 1 only for the Asian Licensed
         Territory.

                  (vi)     If Roche files a regulatory approval application in 
         Thailand after *
                                             then the milestone *             
         and *
                dates  specified in  subparagraphs  (iii) and (v) above shall be
         deferred  by the number 



                                       27
<PAGE>

         of days such  regulatory  application  is filed  after * 
         provided,  however,  that the above-referenced  milestone dates
         shall not be  deferred  for any  day(s)  where  such delay is caused by
         reasons beyond Roche's control.

                  (vii) If Roche  markets any other HIV protease  inhibitors  in
         the Licensed  Territory  during the term of this  Agreement,  sales for
         such  product(s)  shall  be  included  in the  consolidated  Net  Sales
         calculation according to Royalty Schedule 2.

                  (viii) The annual period  Consolidated  Annual Net Sales Level
         for  calculating  royalties  on Net Sales shall be the  calendar  year;
         provided, however, that Net Sales occurring during the partial calendar
         year period  commencing with the Initial  Commercial Sale of Product in
         the Licensed  Territory,  shall be calculated  on an annualized  twelve
         (12) month basis ending December 31.

                  (ix)  If  Agouron  and JT  are  unable  to  deliver  to  Roche
         significant  amounts of Product  ordered by Roche for  commercial  sale
         (other than special license sales) in the Licensed Territory during the
         period ending on the first  anniversary of the marketing  authorization
         for the first  Product  from the  European  Commission  (or  regulatory
         approval for the first  Product in a Major  European  Country) and such
         Product  was  ordered by Roche in a timely  manner in  accordance  with
         forecasting and ordering  procedures  agreed upon by the parties,  then
         the  parties  will  discuss  in  good  faith  an   adjustment   in  the
         implementation of Schedule 2. *















         Section 5.02      General Licensing Terms.

         (a) No sales  shall be deemed to have  occurred  as the result of sales
between and among the  parties,  their  Affiliates  and  sublicensees;  it being
understood that sales occur when made to non-Affiliated  third party purchasers.
A sale of a Product  shall be deemed  to have  been  made upon the  earliest  of
invoicing or delivery of such Product for value to a non-Affiliated  third party
purchaser.  In the case of a sale or other disposal of a Product for value other
than in an 


                                       28
<PAGE>

arm's-length transaction exclusively for money, such as barter or counter-trade,
sales shall be calculated using the fair market value of such Product (if higher
than the stated sales price) in the country of disposal.

         (b)      *













         (c)      *








         (d) In calculating royalties with respect to a Combination Product, the
parties shall enter into good faith negotiations regarding the percentage of the
Net  Sales  of such  Combination  Product  to be used in  calculating  royalties
payable with respect to such Combination Product on a country-by-country  basis.
If the parties are unable to agree upon such percentage,  royalties with respect
to a Combination Product in a country *











                                       29
<PAGE>

         (e)  Royalties due on the sale of a Product shall be owed from the date
of Initial Commercial Sale (or, if earlier, the first special license sale) by a
party,  its  Affiliates  or  sublicensees  of such  Product  in a country of the
Licensed Territory, until the latest of: *














         (f) The parties  agree that the  accounting  and  payment of  royalties
shall comply with the following terms and conditions:

                  (i)      As soon as possible, but no later than *
                            Roche shall  provide to the  authorized  
representative  of Agouron and JT with its good faith  estimate of the amount of
Net Sales for such calendar month.

                  (ii)     On or before the *
                    of each and every  calendar year for as long as royalties 
are due following  the  commencement  of the marketing of Products, Roche shall:
         (A) *






                  (iii)    Roche's accounting of royalty *                      
shall be reviewed and signed by an  appropriate  financial  employee of Roche,
         and shall identify all relevant details regarding *



                  (iv)     Any royalty payments due that are not paid on or 
before the date such payments are due shall bear interest at *




                                       30
<PAGE>

         (g) Roche shall maintain and cause its Affiliates and  sublicensees  to
maintain  books of account and complete and accurate  records  pertaining to the
sale or other  disposition  of Products  and of the  royalty  and other  amounts
payable  under this  Agreement  in  sufficient  detail to permit the  authorized
representative of Agouron and JT to confirm the correctness of such items. *





























         (h) Roche shall be entitled to withhold from a royalty or other payment
due Agouron and/or JT, the amount,  if any, of any withholding tax assessable to
the party due the  payment,  provided  evidence  of  payment  of any such tax is
promptly  provided  to the party for  which  the tax is  withheld.  If any taxes
(other than  value-added  taxes) are imposed on payments of royalties to Agouron
and/or JT and are required to be withheld therefrom, such taxes shall be for the
account of Agouron  and/or JT,  respectively,  and the payments due to the party
for which tax is  withheld  shall be reduced  accordingly.  Roche  shall  advise
Agouron and/or JT and provide them with copies of the tax receipts for all taxes
deducted from the payment of royalties due them.

                                       31
<PAGE>

         (i) The costs of  defending  or settling any claim or suit by any third
party for  infringement of a patent of such third party by a party's practice of
the Patent Rights, Agouron/JT Technology,  Roche Technology,  and/or Development
Program Technology in discovering,  developing, manufacturing or commercializing
the Compound, intermediates thereof and/or Products *


         (j) Upon the  expiration  of the  foregoing  royalty  obligations  in a
country,  which shall also be the expiration date of the licenses  granted Roche
in such country pursuant to Sections 2.01(a) or 2.03, Roche *

                                     intermediates  thereof and Products in the 
Field in such country on a non-exclusive basis;  provided,  however,  that such
commercialization is subject to any other continuing obligations due Agouron and
JT, including license obligations under Section 2.01(j), if any.

         (k) The parties agree in the future to use their reasonable  efforts to
negotiate any additional licensing terms for the Compound, intermediates thereof
and/or  Products which may be necessary to clarify the rights and obligations of
the parties.

         Section 5.03      Foreign Currency.

         (a)  Development  costs,  Patent and Trademark  costs,  Adjusted  Gross
Sales,  Net  Sales and any  royalty  amounts  shall be  stated in United  States
dollars. Payments of development costs, Patent and Trademark costs and royalties
shall be made in United States dollars.  Any required  conversion of development
costs,  Patent and  Trademark  costs,  Adjusted  Gross Sales,  Net Sales and any
royalty amounts to United States dollars shall be done using the monthly average
rate of exchange for the calendar month in which such development costs,  Patent
and Trademark  costs,  Adjusted Gross Sales,  Net Sales and any royalty  amounts
were incurred or first determined.

         (b)      The conversion from a foreign currency to United States 
dollars shall be made by *





         (c)      *







                                       32
<PAGE>












         (d)      *







                        ARTICLE VI - TERM AND TERMINATION

         Section 6.01  Termination for Breach.  Either party may, at its option,
terminate  this  Agreement for cause in the event the other party shall commit a
material  breach of this  Agreement  (including the failure of Roche to make the
payments described in Section 5.01(a) in a timely manner) and shall fail to cure
such breach  during the one hundred  twenty  (120) day period  (thirty  (30) day
period in the case of any payment default) following receipt of a written notice
of such breach from the  non-breaching  party.  After the end of the  applicable
cure  period,  the party  who has the  right of  termination  may  exercise  its
termination  option by giving the  breaching  party prior  written  notice of at
least fifteen (15) days of its election to terminate.  Any  termination  of this
Agreement shall not release the breaching  party from any  obligations  incurred
hereunder, and the non-breaching party shall be entitled to pursue an action for
damages  arising  as a result of such  material  breach.  For  purposes  of this
Article VI,  Agouron and JT shall be deemed to be a single party;  an authorized
representative  of Agouron and JT shall be  entitled  to take any actions  which
Agouron  and/or JT are  entitled  to take  pursuant  to the  provisions  of this
Article VI.

         Section 6.02      Termination by Roche.

         (a) Roche may elect to cancel the  development  and  Registration  of a
Product in the Field in a country  located in the  Licensed  Territory  upon one
hundred  eighty (180) days  written  notice.  If Roche  elects to terminate  its
participation in the development and Registration of a Product in the Field in a
country  located in the  Licensed  Territory,  it shall use its best  efforts to

                                       33
<PAGE>

terminate  its  participation  concurrently  with the  completion of its ongoing
clinical studies.  In the event that Roche elects to discontinue the development
and  Registration of a Product in the Field in a country located in the Licensed
Territory, subject to the provisions of the D&L Agreement, Agouron and JT, their
Affiliates  and  sublicensees  shall be free,  without  any  further  action  by
Agouron,  JT or Roche,  and  without  any  further  obligation  to Roche and its
Affiliates, to continue to develop and/or commercialize Products in such country
on their own or with any third  party,  and to retain,  use and  disclose to any
such third party,  information  and materials  which have been  developed in the
development and Registration of the Product,  provided that Agouron and JT shall
not disclose to such third party the confidential and proprietary information of
Roche  (other  than  clinical,  regulatory  and  manufacturing  information  and
materials   specifically  relating  to  such  Product).  In  the  event  of  the
discontinuation  of Roche's  development  and  Registration  of a Product in the
Field in a country, the licenses granted to it by the provisions of Section 2.01
to use, offer for sale, sell and/or import in or into such country, such Product
in the Field under applicable  Agouron/JT Patent Rights and Development  Program
Patent Rights, and using applicable Agouron/JT Technology,  Roche Technology and
Development Program Technology,  shall be terminated,  and Agouron and JT, their
Affiliates and sublicensees  shall have no royalty or other obligations to Roche
and its Affiliates  resulting from the  manufacture,  use, offer for sale,  sale
and/or  import in or into such country of the  Compound,  intermediates  thereof
and/or Products by Agouron and JT, their Affiliates and sublicensees. Subject to
the provisions of the D&L Agreement: (i) Agouron and JT shall have the exclusive
right to Trademarks; (ii) Roche shall transfer ownership of any Dossiers for the
Product in such country to Agouron and JT; and (iii) Roche shall  cooperate with
Agouron  and JT to affect an  orderly  transition  of  Roche's  development  and
Registration  responsibilities in such country to Agouron and JT. Roche shall be
responsible  for the cost of its  development  activities in a country until the
effective  date  of  such  cancellation,  including  the  expenses  incurred  in
terminating  such activities and the costs of completing  clinical studies which
were  obligated  to prior to its election to  discontinue  the  development  and
Registration of such Product in the Field in such country.

         (b) Roche may elect to terminate its marketing  rights for a Product on
a country-by-country basis upon one hundred eighty (180) days written notice. In
the event that Roche elects to terminate its marketing rights for a Product in a
country,  subject  to the  provisions  of the D&L  Agreement:  (i) the  licenses
granted to Roche by the provisions of Section 2.01 to use, offer for sale,  sell
and/or  import  in or  into  such  country,  such  Product  in the  Field  under
applicable  Agouron/JT Patent Rights and Development  Program Patent Rights, and
using applicable Agouron/JT Technology, Roche Technology and Development Program
Technology,  shall be  terminated,  and Agouron  and JT,  their  Affiliates  and
sublicensees  shall be free,  without  any further  obligation  to Roche and its
Affiliates,  to market such Product in such country on its own or with any third
party; (ii) Agouron and JT, their Affiliates and sublicensees shall not have any
royalty or other  obligations  to Roche and its  Affiliates  resulting  from the
manufacture,  use, offer for sale, sale and/or import in or into such country of
the Compound,  intermediates  thereof  and/or  Products by Agouron and JT, their
Affiliates and sublicensees; (iii) Agouron and JT shall have the exclusive right
to Trademarks in such country;  (iv) Roche shall  transfer  ownership to Agouron
and JT of any  Dossiers for such  Product in such  country;  and (v) Roche shall
cooperate  

                                       34
<PAGE>

with  Agouron  and JT to affect  an  orderly  transition  of  Roche's  marketing
responsibilities in such country to Agouron and JT.

         (c) If there is a material  breach of this  Agreement by Agouron and JT
but Roche nevertheless  wishes to retain its rights granted by the terms of this
Agreement  in the  Compound  and/or  Products  arising  out  of the  Development
Program, then Roche shall not be entitled to terminate this Agreement for cause,
but shall only be entitled  to pursue an action for damages  arising as a result
of such material breach.

         Section 6.03      Termination  by Mutual  Agreement.  The parties may 
at any time  terminate  this  Agreement,  in part or in its entirety,  by mutual
written agreement.

         Section 6.04 Termination Upon Bankruptcy.  In the event that a party is
subject to any proceeding  under the bankruptcy laws, or to the appointment of a
receiver,  trustee or  liquidator  of its business or  substantially  all of its
assets,  and such  proceeding,  if  involuntary,  is not dismissed or discharged
within one hundred fifty (150) days after such proceeding is instituted, or upon
the  liquidation,  dissolution,  or  winding  up  of  its  business,  then  this
Agreement,  at the  election  of the other  party,  shall be  terminated  in its
entirety  for cause upon a notice in writing of at least  fifteen (15) days from
the party who is not bankrupt or insolvent.

         Section 6.05 Disposition of Inventory. In the event of the cancellation
or  termination  of any license  rights with respect to a Product,  inventory of
such Product may be sold for up to six (6) months after date of  cancellation or
termination, provided required payments, if any, are paid thereon.

         Section 6.06 Effect of  Termination.  The termination of this Agreement
shall, to the extent not otherwise  expressly provided herein, have no affect on
the rights and  obligations of the parties under this Agreement with respect to:
(i)  the  parties'   obligations   of   confidentiality,   indemnification   and
compensation  for services  performed;  (ii) a party's  liability for failure to
fulfill its  obligations or  undertakings  under this  Agreement;  and (iii) the
rights or obligations of the parties otherwise expressly stated in the Agreement
to survive the termination of this  Agreement.  If this Agreement is terminated,
Agouron and JT's obligations  under Section 2.02(b) shall  terminate.  Any other
provisions  of this  Agreement  which by their  nature are  intended  to survive
termination  shall also survive.  Upon any  termination of this Agreement in its
entirety because of a breach of a party,  neither party waives any rights to any
remedies it may have arising out of the termination.  In the event of any breach
by a party with respect to obligations which continue after a termination in its
entirety of this  Agreement,  the  non-breaching  party shall have all  remedies
available  to it, as if the  Agreement  were still in effect on the date of such
breach.



                                       35
<PAGE>


                  ARTICLE VII - WARRANTIES AND COVENANTS; INDEMNITIES; 
     INSURANCE; DISPUTE RESOLUTION; GOVERNMENTAL APPROVALS; EXPORT CONTROLS

         Section 7.01      Warranties and Covenants.

         (a) Each party represents and warrants to the other parties that it has
the legal power, authority and right to enter into this Agreement and to perform
all of its respective  obligations  set forth herein,  including the attachments
hereto.

         (b) Agouron and JT each  represents  and warrants  that, as of the date
this  Agreement  is executed,  it was not aware of the  existence of any patents
owned  and  Controlled  by a third  party  covering  the  Compound  which  would
materially prevent the parties from commercializing the Compound in the Field in
the Licensed Territory.  For purposes of this Section 7.01(b), the parties agree
that United States Patent No.  5,587,481 and United States Patent No.  4,439,613
and their  foreign  counterparts  do not  materially  prevent the  parties  from
commercializing the Compound in the Field in the Licensed Territory.

         (c) Each  party  covenants  that it shall not commit any act or fail to
take any action which,  in any  significant  way,  would be in conflict with its
material obligations under this Agreement and the attachments hereto.

         (d) Each party  promises to comply in all  material  respects  with the
terms of the licenses granted to it under this Agreement,  and with all federal,
state,  local  and  foreign  laws,  rules  and  regulations  applicable  to  the
development,   manufacture,   distribution,  import  and  export,  and  sale  of
pharmaceutical products pursuant to this Agreement.

         (e) EXCEPT AS OTHERWISE  EXPRESSLY PROVIDED IN THIS AGREEMENT,  EACH OF
THE PARTIES MAKES NO WARRANTIES,  EXPRESSED OR IMPLIED,  OF  MERCHANTABILITY  OR
FITNESS FOR A  PARTICULAR  PURPOSE OF ANY  SUBJECT  MATTER  INCLUDED  WITHIN THE
CLAIMS OF THE PATENT RIGHTS,  INCLUDING THE COMPOUND. THE PARTIES UNDERSTAND AND
AGREE THAT  DEVELOPMENT  AND  COMMERCIALIZATION  OF THE COMPOUND AND/OR PRODUCTS
WILL  INVOLVE  APPROVAL  BY  REGULATORY  AUTHORITIES,   AND  THAT  NO  PARTY  IS
GUARANTEEING THE SAFETY OR EFFICACY OF THE COMPOUND AND/OR PRODUCTS, OR THAT THE
COMPOUND AND/OR PRODUCTS WILL RECEIVE THE REQUIRED APPROVALS.

         Section 7.02      Indemnities; Insurance.

         (a) Roche shall  indemnify and hold harmless  Agouron and JT, and their
Affiliates,  employees,  and agents (an "Agouron/JT Indemnified Party") from and
against any and all liabilities,  losses, damages, costs, or expenses (including
reasonable  investigative and attorneys' fees) which the Agouron/JT  Indemnified
Party may  incur,  suffer or be  required  to pay  resulting  


                                       36
<PAGE>

from or arising in connection with any product liability or other claims,  other
than claims for patent  infringement,  arising from the use by any person of any
Product,  to the extent such product  liability or other claim  results from the
negligent,  reckless or  intentional  misconduct  of Roche,  its  Affiliates  or
sublicensees, or their respective employees and agents, or on account of Roche's
failure  to fulfill  its  obligations  or  undertakings  under  this  Agreement;
provided,  however,  that in no event  shall  Roche be liable  to an  Agouron/JT
Indemnified  Party  for  any  indirect,  incidental,  special  or  consequential
damages, including loss of revenues or profits from sales of Products.

         (b)  Agouron and JT shall  indemnify  and hold  harmless  Roche and its
Affiliates, employees, and agents (a "Roche Indemnified Party") from and against
any  and  all  liabilities,  losses,  damages,  costs,  or  expenses  (including
reasonable  investigative and attorneys' fees) which the Roche Indemnified Party
may incur, suffer or be required to pay, resulting from or arising in connection
with any  product  liability  or other  claims,  other  than  claims  for patent
infringement,  arising from the use by any person of any Product,  to the extent
such product  liability or other claim results from the  negligent,  reckless or
intentional  misconduct of Agouron and/or JT, their  Affiliates or sublicensees,
or their  respective  employees  and  agents,  or on  account of Agouron or JT's
failure  to fulfill  its  obligations  or  undertakings  under  this  Agreement;
provided,  however,  that in no event  shall  Agouron or JT be liable to a Roche
Indemnified  Party  for  any  indirect,  incidental,  special  or  consequential
damages, including loss of revenues or profits from sales of Products.

         (c) To the extent that a product liability or other claim, other than a
claim  for  patent  infringement,   results  from  the  negligent,  reckless  or
intentional  misconduct of more than one party, their Affiliates,  sublicensees,
or their  respective  employees  and agents,  the  parties  agree to share in an
equitable  manner  such  liabilities,  losses,  damages,  costs,  or expenses in
proportion  to the  relative  fault of each of the  parties,  their  Affiliates,
sublicensees, or their respective employees and agents.

         (d) Unless the parties agree otherwise, all other liabilities,  losses,
damages,  costs, or expenses (including reasonable  investigative and attorneys'
fees) under this Section  7.02  relating to or involving a Product in a country,
except as provided by the terms of Sections  7.02(a),  (b) and (c), shall be the
responsibility  of the party  marketing such Product in such country.  The party
marketing a Product in a country shall indemnify the non-marketing party in such
country from and against any and all  liabilities,  losses,  damages,  costs, or
expenses  (including  reasonable  investigative  and attorneys' fees) which such
non-marketing  party may incur,  suffer or be required to pay resulting  from or
arising in connection  with any product  liability or other  claims,  other than
claims  for  patent  infringement,  arising  from the use by any  person of such
Product  in such  country.  Section  3.02  sets  forth  the  parties'  liability
obligations arising from claims for patent infringement.

         (e)      The aforesaid obligations of the indemnifying party shall be 
subject to the indemnified party fulfilling the following obligations:

                                       37
<PAGE>

                  (i) The  indemnified  party  shall  fully  cooperate  with the
         indemnifying party in the defense of any claims,  actions,  etc., which
         defense shall be controlled by the indemnifying party.

                  (ii) The indemnified  party shall not, except at its own cost,
         voluntarily  make any payment or incur any expense  with respect to any
         claim or suit  without the prior  written  consent of the  indemnifying
         party, which consent such party shall not be required to give.

                  (iii)  Promptly  after  receipt  by the  indemnified  party of
         notice of the  commencement  of any  litigation or threat thereof which
         may reasonably  lead to a claim for  indemnification,  such party shall
         notify the indemnifying party.

         (f)      The parties agree to maintain appropriate amounts of product 
liability insurance coverage.

         Section 7.03 Dispute  Resolution.  In the event of any  controversy  or
claim arising out of or relating to any provision of this  Agreement or any term
or condition hereof, or the performance by a party of its obligations hereunder,
the parties shall try to settle their differences  amicably between  themselves.
If the  representatives of the parties are unable to reach agreement on any such
issue, the issue shall be submitted for consideration,  in the case of Roche, to
a designee  of the Head of the  Pharma  Division  of Roche  and,  in the case of
Agouron and JT, to one or more representatives  jointly appointed by Agouron and
JT. If they are unable to agree,  then the issue shall be resolved,  in the case
of  Roche,  by the Head of the  Pharma  Division  of Roche  and,  in the case of
Agouron and JT, by one or more representatives  jointly appointed by Agouron and
JT. Any unresolved  issues arising between the parties  relating to, arising out
of, or in any way connected with this Agreement or any term or condition hereof,
or the  performance by a party of its obligations  hereunder,  whether before or
after  termination  of this  Agreement,  except as  otherwise  provided  in this
Agreement,  shall be finally resolved by binding  arbitration.  Whenever a party
shall decide to institute arbitration proceedings,  it shall give written notice
to that effect to the other party.  The party  giving such notice shall  refrain
from  instituting  the  arbitration  proceedings for a period of sixty (60) days
following such notice.  If Roche is the party  initiating the  arbitration,  the
arbitration  shall be held in San Diego,  California,  according to the rules of
the  American  Arbitration  Association  ("AAA").  If  Agouron  and  JT,  acting
collectively as a single party,  is the party  initiating the  arbitration,  the
arbitration shall be held in Newark,  New Jersey,  according to the rules of the
AAA. The arbitration shall be conducted by a single  arbitrator  mutually chosen
by the  parties.  If the parties can not agree upon a single  arbitrator  within
fifteen (15) days after the institution of the arbitration proceeding,  then the
arbitration  shall be  conducted  by a panel of three  arbitrators  appointed in
accordance  with AAA rules;  provided,  however,  that each party shall,  within
thirty (30) days after the institution of the arbitration  proceedings,  appoint
one  arbitrator  with  the  third  arbitrator  being  chosen  by the  other  two
arbitrators.  If only one party  appoints an  arbitrator,  then such  arbitrator
shall be entitled to act as the sole arbitrator to resolve the controversy.  Any
arbitration hereunder shall be conducted in the English language, to the maximum
extent  possible.  All  arbitrator(s)  eligible to conduct the 

                                       38
<PAGE>

arbitration must agree to render their opinion(s) within thirty (30) days of the
final arbitration  hearing.  The arbitrator(s) shall have the authority to grant
injunctive  relief and specific  performance and to allocate between the parties
the costs of arbitration in such  equitable  manner as he determines;  provided,
however,  that each party shall bear its own costs and  attorneys'  and witness'
fees.  Notwithstanding  the terms of this Section  7.03, a party shall also have
the  right to  obtain,  prior to the  arbitrator(s)  rendering  the  arbitration
decision,   provisional  remedies,   including  injunctive  relief  or  specific
performance,  from a court having jurisdiction thereof. The arbitrator(s) shall,
upon the request of either  party,  issue a written  opinion of the  findings of
fact and  conclusions  of law and shall  deliver a copy to each of the  parties.
Decisions of the arbitrator(s) shall be final and binding on all of the parties.
Judgment  on  the  award  so  rendered  may  be  entered  in  any  court  having
jurisdiction thereof.

         Section 7.04 Governmental Approvals. Roche, Agouron and JT shall obtain
any  government   approval(s)  required  to  enable  this  Agreement  to  become
effective,  or to  enable  any  payment  hereunder  to be  made,  or  any  other
obligation  hereunder  to be  observed or  performed.  Each party shall keep the
other  informed of its progress in obtaining  any such  government  approval and
shall cooperate with the other party in any such efforts.

         Section 7.05 U.S. Export Controls. The parties agree to comply with the
United  States laws and  regulations  governing  exports and  re-exports  of the
Compound,  intermediates  thereof,  Products,  Development  Program  Technology,
Agouron/JT  Technology,  Roche  Technology,  or any other technology or software
developed or disclosed as a result of this  Agreement.  The parties  acknowledge
that any performance  under this Agreement is subject to any restrictions  which
may be imposed by the United States laws and regulations  governing  exports and
re-exports.  Each party agrees to provide the other parties with any  reasonable
assistance,  including  written  assurances which may be required by a competent
governmental  authority and by applicable laws and regulations as a precondition
for any  disclosure of technology or software by the other party under the terms
of  this  Agreement.   The  obligations  of  this  Section  7.05  shall  survive
termination or expiration of this Agreement.

                     ARTICLE VIII - DISCLOSURE OF AGREEMENT

         Section  8.01  Disclosure  of  Agreement.  Except  as  agreed to by the
parties,  neither  Agouron,  JT nor Roche shall release any  information  to any
third party with respect to any of the terms of this Agreement without the prior
written  consent of the other parties,  which consent shall not  unreasonably be
withheld.  This  prohibition  includes,  but is not limited to, press  releases,
educational and scientific  conferences,  promotional  materials and discussions
with the media.  If a party  determines  that it is  required  by law to release
information to any third party regarding the terms of this  Agreement,  it shall
notify the other  parties of this fact prior to releasing the  information.  The
notice to the other parties shall include the text of the  information  proposed
for release. The other parties shall have the right to confer with the notifying
party regarding the necessity for the disclosure and the text of the information
proposed for release. Notwithstanding the preceding, Roche, Agouron and JT shall
each have the  right to  disclose  the terms of this  Agreement  to  persons  it
proposes to enter into business  relationships with, if such 

                                       39
<PAGE>

persons are subject to confidentiality  and use obligations  equivalent to those
applicable to the disclosing party hereunder.

                         ARTICLE IX - GENERAL PROVISIONS

         Section 9.01 No Implied Licenses. Only the licenses granted pursuant to
the express terms of this Agreement  shall be of any legal force and effect.  No
license rights shall be created by implication or estoppel.

         Section  9.02 No Waiver.  Any  failure by a party to enforce  any right
which it may have  hereunder  in any  instance  shall not be deemed to waive any
right which it or the other parties may have in any other  instance with respect
to any provision of this Agreement, including the provision which such party has
failed to enforce.

         Section  9.03  Severability;  Government  Acts.  In the event  that any
provision  of  this  Agreement  is  judicially,  or  by a  competent  authority,
determined to be  unenforceable,  in part or in whole, with regard to any or all
of the countries in the Territory,  the remaining provisions or portions of this
Agreement  shall be valid and binding to the fullest  extent  possible,  and the
parties shall endeavor to negotiate  additional terms, as feasible,  in a timely
manner so as to fully  effectuate  the original  intent of the  parties,  to the
extent  possible,  in the  applicable  countries.  In the  event  that  any act,
regulation,  directive, or law of a country, including its departments, agencies
or courts  should make  impossible  or prohibit,  restrain,  modify or limit any
material act or obligation of a party under this  Agreement and, if any party to
this  Agreement is  materially  adversely  affected  thereby,  the parties shall
attempt in good faith to negotiate a lawful and enforceable modification to this
Agreement which substantially  eliminates the material adverse effect; provided,
that,  failing  any  agreement  in that  regard,  the  party  who is  materially
adversely  affected shall have the right, at its option, to suspend or terminate
this Agreement as to such country.

         Section 9.04 Ambiguities.  Ambiguities, if any, in this Agreement shall
not be construed against any party, irrespective of which party may be deemed to
have authored the ambiguous provision.

         Section  9.05  Notification  of  Authorities.  After  execution of this
Agreement,  to the extent  required by law,  Agouron,  after  consultation  with
Roche, shall notify the appropriate United States authorities about the terms of
this Agreement;  JT, after consultation with Roche, shall notify the appropriate
Japanese  authorities  about  the  terms of this  Agreement;  and  Roche,  after
consultation with the authorized  representative of Agouron and JT, shall notify
the  appropriate  European  and  other  authorities  about  the  terms  of  this
Agreement.  The parties  shall keep each other  fully  advised of the status and
progress of the notification procedures.

         Section 9.06 No Agency.  Agouron, JT and Roche shall have the status of
independent contractors under this Agreement and, except as otherwise explicitly
provided in this  Agreement,  
                                       40
<PAGE>

nothing in this Agreement shall be construed as an  authorization  of a party to
act as an agent of another party.

         Section 9.07 Captions;  Number;  Official Language. The captions of the
Articles  and  Sections  of this  Agreement  are  for  general  information  and
reference  only, and this Agreement  shall not be construed by reference to such
captions.  Where applicable in this Agreement,  the singular includes the plural
and vice  versa.  To the extent  appropriate,  the  meaning of terms whose first
letters  are  capitalized,  but which are  variations  of terms that are defined
elsewhere  in this  Agreement,  shall each have the same  meaning as the defined
term.  English shall be the official  language of this Agreement and any license
agreement  provided for hereunder,  and all  communications  between the parties
hereto shall be conducted in that language.

         Section 9.08 Force  Majeure.  A party shall not be  responsible  to the
other parties for any failure,  delay or  interruption in the performance of any
of its obligations  under this Agreement if such failure,  delay or interruption
is caused by any act of God, earthquake,  fire, casualty,  flood, war, epidemic,
riot,  insurrection,  or  any  act,  exercise,  assertion  or  requirement  of a
governmental  authority,  or other cause  beyond the  reasonable  control of the
party  affected if the party  affected shall have used its best efforts to avoid
such  occurrence.  If a  party  believes  that  the  performance  of  any of its
obligations  under this Agreement shall be delayed or interrupted as a result of
any of the reasons  stated in this Section 9.08, and provided such party is able
to do so, such party shall  promptly  notify the other  parties of such delay or
interruption  and the cause therefor,  and shall provide such other parties with
its estimate of when the performance of its obligations shall  recommence.  When
the party affected is able to recommence the performance of obligations  delayed
or interrupted as a result of any of the reasons stated in this Section 9.08, it
shall so notify the other  parties  and,  except as  otherwise  provided in this
Agreement, it shall promptly resume the performance of such obligations.

         Section 9.09 Amendment.  This Agreement,  including the Attachments and
Schedules,  constitutes  the full  agreement  of the parties with respect to the
subject matter of this Agreement, and incorporates any prior discussions between
them  with  respect  to  such  subject  matter;  provided,   however,  that  the
Confidential Disclosure Agreements ("CDAs") between the parties dated January 7,
1997 and  April 3,  1997  shall be  deemed  by the  parties  to  supplement  the
confidentiality  provisions of this Agreement. In the event of any inconsistency
between this  Agreement  and the LOI,  including  Exhibit A thereto,  and/or the
CDAs, the terms of this Agreement shall govern.  This  Agreement,  including the
attachments  hereto,  shall not be amended,  supplemented or otherwise modified,
except by an instrument  in writing  signed by duly  authorized  officers of the
parties.  Except as otherwise explicitly provided in this Agreement,  nothing in
this  Agreement  shall be deemed to amend the rights and  obligations of Agouron
and JT under the D&L  Agreement,  or otherwise  amend the  provisions of the D&L
Agreement.

         Section 9.10  Applicable Law. This Agreement shall be construed and the
rights of the parties shall be  determined  in  accordance  with the laws of the
United States and the State of California, without regard to its conflict of law
provisions.

                                       41
<PAGE>

         Section  9.11  Notices.  Any notice  required or  permitted to be given
under this Agreement shall be in writing and shall be given in person, delivered
by recognized overnight delivery service,  sent by mail (certified or registered
or air mail for addresses  outside of the  continental  U.S.), or by telefax (or
other similar means of electronic communication),  whose receipt is confirmed by
confirming  telefax,  and  addressed,  in the  case  of  Agouron,  to  the  Vice
President, Commercial Affairs (with a copy to the Legal Department), in the case
of JT,  to the  Vice  President,  Pharmaceutical  Division  (with  a copy to the
International  Legal  Division)  and,  in the  case  of  Roche,  to the  Head of
Strategic Marketing and Business  Development of Pharma Division (with a copy to
the  Legal  Department),  at the  addresses  shown  at  the  beginning  of  this
Agreement,  or such other person  and/or  address as may have been  furnished in
writing to the notifying party in accordance with the provisions of this Section
9.11. Except as otherwise  provided herein, any notice shall be deemed delivered
upon the  earlier  of:  (i) actual  receipt;  (ii) two (2)  business  days after
delivery to such recognized overnight delivery service;  (iii) five (5) business
days after  deposit in the mail;  or (iv) the date of receipt of the  confirming
telefax.

         Section 9.12 Assignment.  This Agreement shall be assignable by Agouron
and/or JT, but shall not be assignable by Roche, except to an Affiliate, without
the prior written  consent of both Agouron and JT, which consent may be withheld
at the sole discretion of Agouron or JT. Any such  assignment  without the prior
written  consent of both  Agouron  and JT shall be void.  If this  Agreement  is
assigned by Roche to an Affiliate,  Roche shall still be responsible  for all of
its obligations specified in this Agreement.  Notwithstanding the preceding,  in
the event of:  (i) a sale or  transfer  of all or  substantially  all of Roche's
assets; or (ii) the merger or consolidation of Roche with another company,  this
Agreement shall be assignable to the transferee or successor company.

         Section 9.13      Succession.  This Agreement shall be binding upon all
successors in interest,  assigns,  trustees and other legal representatives of
the parties.



                                       42
<PAGE>


         IN WITNESS WHEREOF, the parties hereto have executed this Agreement, in
triplicate originals, by their respective officers thereunto duly authorized, as
of the Effective Date.

AGOURON PHARMACEUTICALS, INC.           JAPAN TOBACCO INC.

By:      /s/ Gary Friedman              By:      /s/ Masakazu Kakei
Name:    Gary Friedman                  Name:    Masakazu Kakei
Title:   Corporate V.P. &               Title:   Executive Director,
         General Counsel                         Pharmaceuticals

By:      /s/ R. Kent Snyder             By:      /s/ Y. Inubushi
Name:    R. Kent Snyder                 Name:    Y. Inubushi
Title:   Senior V.P., Head of           Title:   Vice President, Pharm. Division
         Commercial Affairs     


F. HOFFMANN-LA ROCHE LTD

By:      /s/ W. Henrich
Name:    W. Henrich
Title:   Director

By:      /s/ S. Arnold
Name:    S. Arnold
Title:   Authorized Signatory




                                       43
<PAGE>





                                   SCHEDULE 1

                            AGOURON/JT PATENT RIGHTS

"Agouron/JT Patent Rights" collectively means:

         1.       *


                  (a)       *





                  (b)       *


         2.       *


                  (a)       *


         3.       *


         4.       *


         5.       *


         6.       *



                                      S1-1
<PAGE>

                                   SCHEDULE 2

                            ASIAN LICENSED TERRITORY

"Asian Licensed Territory" means the following countries of Asia:

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

*









Licenses in the  above-listed  countries shall be subject to compliance by Roche
with the United States laws and regulations  governing exports and re-exports of
Product and any technology developed or disclosed as a result of this Agreement.

                                      S2-1
<PAGE>


                                   SCHEDULE 3

                      NELFINAVIR MESYLATE CLINICAL STUDIES

                       Results to be Contained in the MAA

- ---------------- ---------------------------------------------------------------

    Protocol     Title
- ---------------- ---------------------------------------------------------------

       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------

                                      S3-1
<PAGE>


                                   SCHEDULE 3
                NELFINAVIR MESYLATE CLINICAL STUDIES (Continued)
                   
                   Interim Results to be Contained in the MAA

- ---------------- ---------------------------------------------------------------

    Protocol     Title
- ---------------- ---------------------------------------------------------------

       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------

                                      S3-2
<PAGE>

                                   SCHEDULE 3
                NELFINAVIR MESYLATE CLINICAL STUDIES (Continued)

                          Results to be Provided Later

- ---------------- ---------------------------------------------------------------

    Protocol     Title
- ---------------- ---------------------------------------------------------------

       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------
       *         *
- ---------------- ---------------------------------------------------------------


                                      S3-3
<PAGE>

                                  ATTACHMENT 1

                           TRADEMARK LICENSE AGREEMENT

This  Trademark  License,  effective as of January 17, 1997, is between  Agouron
Pharmaceuticals,  Inc., a corporation duly organized and existing under the laws
of the state of California,  having a principal place of business at 10350 North
Torrey Pines Road, La Jolla,  California,  United States of America (hereinafter
referred to as "Agouron"),  Japan Tobacco Inc., a corporation duly organized and
existing  under the laws of Japan,  having a  principal  place of business at JT
Building, 2-1, Toranomon 2-chome,  Minato-ku, Tokyo, Japan (hereinafter referred
to as "JT") and F.  Hoffmann-La  Roche Ltd, a  corporation  duly  organized  and
existing under the laws of Switzerland,  having a principal place of business at
CH-4002-Basel, Switzerland (hereinafter referred to as "Roche"). Agouron, JT and
Roche are each sometimes  hereinafter each referred to as a party  (collectively
"parties") to this Trademark License.

(Terms containing an initial capitalized letter,  except as explicitly otherwise
indicated,  shall have the meanings stated in the VIRACEPT License Agreement, as
defined below.)

                                   BACKGROUND

On  December  1, 1994,  Agouron and JT entered  into a  Development  and License
Agreement   under  which  they  have   collaborated   in  the   development  and
commercialization of the chemical compound known as "nelfinavir mesylate"

         [3S-(3R*,4aR*, 8aR*,  2'S*,
         3'S*)]-2-[2'-hydroxy-3'-phenylthiomethyl-4'-aza-5'-oxo-5'-
         (2"-methyl-3"-hydroxyphenyl)pentyl]-decahydroisoquinoline-3-N-t-butyl
         carboxamide methanesulfonic acid salt)

(sometimes  referred  to  herein  as  "VIRACEPT")  to treat  and  prevent  Human
Immunodeficiency Virus ("HIV") infections.

On January 17,  1997,  Agouron,  JT and Roche  entered  into a VIRACEPT  License
Agreement. The VIRACEPT License Agreement, as now or as subsequently amended, is
hereinafter referred to as the "VIRACEPT License Agreement."

Agouron  and JT have  granted a license to Roche to sell  VIRACEPT  products  to
treat and prevent HIV  infections in certain  countries of the world pursuant to
the terms of a Letter of Intent  entered into by the parties on January 17, 1997
and the VIRACEPT License Agreement.

The VIRACEPT License  Agreement  provides that a form trademark license shall be
agreed upon by the parties and  attached to the  VIRACEPT  License  Agreement as
Attachment  1. The  VIRACEPT  License  Agreement  also  contains  the  following
provisions concerning ownership and utilization of Trademarks:

                                       A1-1
<PAGE>

                  Section 1.26  "Trademark(s)"  means any trademark selected and
         owned by a party and  registered  (or applied  for) by such party,  its
         Affiliate(s) and  sublicensee(s) in the Territory for use in connection
         with the marketing of Products.  The definition of  Trademark(s)  shall
         not refer to trade names used by a party to designate  the name of such
         party.

                  Section 2.01      License Grants. . . .

                                                            * * *

                            (j)     *















                  Section  3.03   Trademarks.   A  party,   its  Affiliates  and
         sublicensees,  if any,  shall be free to use and to register in its own
         name in any  trademark  office in the  Territory  any Trademark for use
         with  Products for which it holds  license  rights to make,  use and/or
         sell  hereunder  as it desires and in its sole  discretion.  Said party
         shall own all right,  title and interest in and to the Trademark in its
         own name or that of its designated  Affiliate or  sublicensee,  if any,
         during  and  after  the  term of this  Agreement.  Notwithstanding  the
         preceding, *








                             Agouron   and  JT  agree  to  share   equally   all
         preparation,  filing,  prosecution  and  maintenance  expenses  in  the
         Licensed  

                                       A1-2
<PAGE>

         Territory  for the  VIRACEPT  Trademark  which are payable to third  
         parties  (excluding  any travel  expenses of the parties,  which
         shall be borne by the party incurring such expenses);  each party shall
         pay its share of such expenses within thirty (30) days from the date of
         its receipt of a proper  invoice for such  expenses.  The parties shall
         not use a Trademark  used in  marketing  of  Products  in the  Licensed
         Territory  for  marketing  other  commercial  products in the  Licensed
         Territory. *


                                                                  Each   of  the
         parties shall annually  prepare a list which  reflects,  to the best of
         its  knowledge,  the current  status of any  Trademark  which its owns.
         Details  regarding  the license  provisions  of the  Trademark  license
         granted in Section 2.01(j) hereof, including quality and specifications
         of the Product,  shall be agreed upon by the parties and later attached
         hereto in Attachment 1 to this Agreement.

                  Section 4.03      Marketing. . . .

                                                            * * *

                            (d)  It is  the  intent  of  the  parties  that  the
         VIRACEPT  Trademark be  identified  and developed for use in connection
         with  the  marketing  of  Products  in  the  Field  wherever   possible
         throughout the Territory.  Unless  otherwise agreed and as permitted by
         law,  Roche  agrees to market  Products in the Field under the VIRACEPT
         brand name in all countries in the Licensed Territory. The parties also
         acknowledge  their  intention  to use, if  appropriate,  the same Trade
         Dress in  connection  with  the  marketing  of  Products  in the  Field
         wherever possible.

One or more of the parties is the owner(s) of the VIRACEPT Trademark, in certain
countries of the Territory.

The parties  intend to use the  VIRACEPT  Trademark,  including  its  associated
non-English translations  (hereinafter collectively referred to as the "VIRACEPT
Trademark"),  only in connection  with the marketing of nelfinavir  mesylate for
the treatment and prevention of HIV infections.

NOW  THEREFORE,  in  accordance  with the  provisions  of the  VIRACEPT  License
Agreement, for good and valuable consideration, the parties agree as follows:

                                       A1-3
<PAGE>

                                TRADEMARK LICENSE

          1. Under the  provisions of the VIRACEPT  License  Agreement,  as more
         specifically  set forth above,  each party  granted to the other party,
         its  Affiliates  and  sublicensees  a  non-exclusive  right  to use the
         granting  party's  Trademark(s)  in the  Territory in the  marketing of
         VIRACEPT products.

2.       Products  marketed  using the  VIRACEPT  Trademark  shall be  
         manufactured  strictly  in  accordance  with  applicable governmental 
         statutes, regulations or directives.

3.       The  licensed  user of the VIRACEPT  Trademark  shall comply with all 
         applicable  governmental  statutes, regulations or directives.

4.       The licensed user of the VIRACEPT  Trademark shall not use the VIRACEPT
         Trademark  in a manner  which is  deceptive,  or which  would bring the
         VIRACEPT Trademark,  the Product or the other parties,  into disrepute.
         Each party shall use the VIRACEPT  Trademark,  including its associated
         non-English  translations,  only in  connection  with the  marketing of
         Products for the treatment and prevention of HIV infections. *



5.       Pursuant to the terms of the VIRACEPT License  Agreement,  Agouron,  JT
         and Roche shall share  obligations  and   responsibilities   related  
         to   Trademark(s).   Provided  a  party  fulfills  its  obligations  
         and responsibilities related to Trademark(s), and subject to the terms 
         of the VIRACEPT License Agreement, *



6.       Each party shall,  upon  learning  thereof,  promptly  notify the other
         party in writing of any  infringement  by a third party of the parties'
         rights in the  VIRACEPT  Trademark,  or of any claim or suit by a third
         party that the use of the  VIRACEPT  Trademark  infringes  or otherwise
         violates the rights of a third party.  The parties  shall  cooperate in
         taking  commercially  reasonable  legal actions to protect the parties'
         rights in the VIRACEPT  Trademark  and/or to contest a claim by a third
         party that the use of the  VIRACEPT  Trademark  infringes  or otherwise
         violates any rights of a third party. *





7.       Only  the  licenses  granted  pursuant  to the  express  terms  of this
         Trademark  License and the VIRACEPT  License  Agreement shall be of any
         legal  force  and  effect.  No  license  rights  shall  be  created  by
         implication or estoppel.

                                       A1-4
<PAGE>

8.       This  Trademark  License  shall  terminate in  accordance  with the  
         provisions  of the  VIRACEPT  License Agreement.

9.       Any failure by a party to enforce any right which it may have hereunder
         in any instance  shall not be deemed to waive any right which it or the
         other  parties  may have in any  other  instance  with  respect  to any
         provisions of this  Trademark  License,  including the provision  which
         such party has failed to enforce.

10.      In the event that any provision of this Trademark License is judicially
         determined  to be  unenforceable,  in whole or in part,  the  remaining
         provisions  or  portions  thereof  shall be valid  and  binding  to the
         fullest  extent  possible,  and the parties shall endeavor to negotiate
         additional  terms,  as  feasible,  in a  timely  manner  so as to fully
         effectuate the original intent of the parties,  to the extent possible.
         Ambiguities,  if any, in this Trademark  License shall not be construed
         against  any party,  irrespective  of which party may be deemed to have
         authored the ambiguous provision.

11.      This Trademark  License and the VIRACEPT License  Agreement  constitute
         the full agreement of the parties with respect to the subject matter of
         this Trademark License,  and incorporate any prior discussions  between
         them with respect to such subject matter.  This Trademark License shall
         not be  amended,  supplemented  or  otherwise  modified,  except  by an
         instrument  in  writing  signed by a duly  authorized  officer  of each
         party.

12.      If there is a conflict between the terms of this Trademark  License and
         the  VIRACEPT  License  Agreement,  the terms of the  VIRACEPT  License
         Agreement shall control.

13.      This  Trademark  License  shall be  construed,  and the  rights  of the
         parties shall be determined,  in accordance  with the laws of the state
         of California and the United States,  without regard to conflict of law
         provisions.

14.      Any notice  required  or  permitted  to be given  under this  Trademark
         License shall be in writing and shall be given in person,  delivered by
         recognized  express  delivery  service,  sent  by  mail  (certified  or
         registered, or air mail for addresses outside of the continental U.S.),
         or by telefax  (or other  similar  means of  electronic  communication)
         whose receipt is confirmed by confirming telefax, and addressed, in the
         case of Agouron, to the Vice President, Commercial Affairs (with a copy
         to the Legal  Department),  in the case of JT,  to the Vice  President,
         Pharmaceutical  Division  (with  a  copy  to  the  International  Legal
         Division) and, in the case of Roche, to the Head of the Pharma Division
         (with a copy to the Legal Department) at the respective addresses shown
         at the  beginning  of the  VIRACEPT  License  Agreement,  or such other
         person  and/or  address  as may have been  furnished  in writing to the
         notifying  party in accordance  with the provisions of this  paragraph.
         Except  as  otherwise  provided  herein,  any  notice  shall be  deemed
         delivered  upon  the  earlier  of:  (i)  actual  receipt;  (ii) two (2)
         business days after delivery to a 

                                       A1-5
<PAGE>

          recognized  express delivery service; (iii) five (5)  business  days 
          after  deposit in the mail;  or (iv) the date of receipt of the 
          confirming telefax.

15.      This  Trademark  License  shall  be  binding  upon  all  successors  in
         interest,  assigns,  trustees  and other legal  representatives  of the
         parties.


IN WITNESS WHEREOF,  the parties hereto have executed this Trademark License, in
triplicate originals,  by their respective officers thereunto duly authorized as
of the day and year hereinabove written.

AGOURON PHARMACEUTICALS, INC.           JAPAN TOBACCO INC.


By:   /s/ R. Kent Snyder                By:   /s/ Masakazu Kakei
Name: R. Kent Snyder, Sr. V.P.          Name: Masakazu Kakei
Title:Head of Commercial Affairs        Title:Executive Director Pharmaceuticals

By:   /s/ Gary Friedman                 By:    /s/ Tatsuya Yoneyama
Name: Gary Friedman                     Name:  Tatsuya Yoneyama
Title:VP and General Counsel            Title: Pharm Div. JT, Vice President


F. HOFFMANN-LA ROCHE LTD


By:   /s/ W. Henrich
Name: W. Henrich
Title:Director

By:   /s/ Stephan Arnold
Name: Stephan Arnold
Title:Authorized Signatory



                                      A1-6
<PAGE>

                                 ATTACHMENT 2

                      PRODUCT MANUFACTURING SPECIFICATIONS



          THE TERMS OF THE PRODUCT MANUFACTURING SPECIFICATIONS WILL BE
CONTAINED IN THE APPLICABLE REGISTRATION FILING (S) FOR THE PRODUCT, AS AMENDED



                                      A2-1

                                                                     Exhibit 21
                   Subsidiary of Agouron Pharmaceuticals, Inc.

                              


        Subsidiary                       %                         State of
        Corporation                    Owned                     Incorporation
     ------------------                -----                     -------------

     Alanex Corporation                 100%                       Delaware


                                                                    Exhibit 23.1




                       CONSENT OF INDEPENDENT ACCOUNTANTS



We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statement  on Form S-8 (No.  33-64415) of Agouron  Pharmaceuticals,  Inc. of our
report dated July 30, 1997  appearing on page F-1 of this Annual  Report on Form
10-K.




/s/  PRICE WATERHOUSE LLP

San Diego, California
August 18, 1997
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
This schedule contains summary financial  informtion extracted from the balance
sheet and the  statement  of  operations  and is  qualified  in its  entirety by
reference to such financial statements.
</LEGEND>
<CIK>                                          0000811210
<MULTIPLIER>                                   1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-mos
<FISCAL-YEAR-END>                              Jun-30-1997
<PERIOD-END>                                   Jun-30-1997
<CASH>                                              52,484
<SECURITIES>                                        38,833
<RECEIVABLES>                                       31,435
<ALLOWANCES>                                            60
<INVENTORY>                                         58,800
<CURRENT-ASSETS>                                   184,201
<PP&E>                                             38,774
<DEPRECIATION>                                     16,161
<TOTAL-ASSETS>                                    266,914
<CURRENT-LIABILITIES>                              68,415
<BONDS>                                                 0
                                   0
                                             0
<COMMON>                                          317,133
<OTHER-SE>                                       (125,851)
<TOTAL-LIABILITY-AND-EQUITY>                      266,914
<SALES>                                            56,969
<TOTAL-REVENUES>                                  132,063
<CGS>                                              24,599
<TOTAL-COSTS>                                     115,995
<OTHER-EXPENSES>                                        0
<LOSS-PROVISION>                                        0
<INTEREST-EXPENSE>                                    142
<INCOME-PRETAX>                                   (85,383)
<INCOME-TAX>                                       42,577
<INCOME-CONTINUING>                                     0
<DISCONTINUED>                                          0
<EXTRAORDINARY>                                         0
<CHANGES>                                               0
<NET-INCOME>                                      (42,806)
<EPS-PRIMARY>                                       (3.18)
<EPS-DILUTED>                                       (3.18)
        

</TABLE>

                                                                     Exhibit 99

                          Agouron Pharmaceuticals, Inc.
                           Important Factors Regarding
                           Forward-Looking Statements



The  following  factors,  among  others,  could cause  actual  results to differ
materially  from those  contained  in  forward-looking  statements  made in this
report and  presented  elsewhere by management  from time to time.  Reference is
also made to the "Risk Factors"  described in the Company's  Prospectuses  dated
July 26, 1996 and June 23, 1997.

Uncertainty  of Product  Development  and Market  Acceptance:  The  Company  has
completed the development and commercialization of only one product and does not
expect to have any additional  products  commercially  available  until calendar
1999, if at all. There can be no assurance that further research and development
of these  additional  products  will be  successful or will result in drugs that
will qualify for approval by regulatory  authorities  for commercial  sale or be
accepted and successful in the marketplace.

Uncertainty  Associated with Clinical  Testing:  Historical  results of clinical
testing of VIRACEPT(R),  THYMITAQ(TM) and the Company's other clinical  programs
are not necessarily predictive of future results. There can be no assurance that
clinical  studies of products under  development will demonstrate the safety and
efficacy of such products.  The failure to adequately demonstrate the safety and
efficacy of a therapeutic  product could delay or prevent regulatory approval of
the product.  There can be no assurance  that  unacceptable  toxicities  or side
effects  will not occur at any time in the  course of human  clinical  trials or
commercial use of the Company's drugs.  The appearance of any such  unacceptable
toxicities  or  side  effects  could  interrupt,   limit,  delay  or  abort  the
development  of  any  of  the  Company's  drugs  or,  if  previously   approved,
necessitate  their  withdrawal  from the  market.  Furthermore,  there can be no
assurance  that  disease  resistance  will not limit the efficacy of VIRACEPT or
other of the Company's  drugs, if any.  Delays in planned patient  enrollment in
the Company's  current  clinical  trials or future clinical trials may result in
increased costs, program delays or both.

Future  Profitability:   While  the  Company  has  recently  begun  to  generate
significant revenues from the commercialization of its first product and expects
to report  ongoing  operating  profits  on a  quarterly  basis,  there can be no
assurance that the Company will achieve  profitable  operations or, if achieved,
maintain profitable operating results.

Additional Financing Requirements and Access to Capital:  Additional funding may
be required for future capital  expenditures,  working capital and other general
corporate  needs.  No assurance can be given that  additional  financing will be
available when needed or on terms  acceptable to the Company.  If adequate funds
are  not  available,   the  Company  may  be  required  to  delay  or  eliminate
expenditures  for certain of its  programs  or  activities  or to license  third
parties  to  commercialize  products  or  technologies  that the  Company  would
otherwise seek to develop and commercialize itself.


<PAGE>



Dependence   on   Others:   The   Company's   strategy   for   development   and
commercialization  of certain of its  products  entails  entering  into  various
arrangements  with  corporate  partners,  licensees and others.  There can be no
assurance  that any revenues or profits will be derived from such  arrangements,
that any of the Company's current strategic  arrangements will be continued,  or
that the Company will be able to enter into future collaborations.

Manufacturing  Capabilities:  The Company is  dependent  on a number of contract
manufacturers  for the  commercial  manufacture  of VIRACEPT  under current Good
Manufacturing  Practices  ("GMP").  Failure to meet GMP standards  would have an
adverse  impact on the Company's  business.  No assurance can be given that such
manufacturers can be retained or that such manufacturers will continue to timely
deliver sufficient product quantities at acceptable costs.

Sales and Marketing  Capabilities:  The Company has established its capabilities
in the sales, marketing and distribution of pharmaceutical  products.  There can
be no assurance that such capabilities will be sufficient or successful.

Patents and Proprietary Technology: No assurance can be given that the Company's
patent applications will issue as patents or that any patents that are or may be
issued  will  provide  the  Company  with  adequate  protection  for the covered
products  or  technology.  Additionally,  there  can be no  assurance  that  the
Company's confidentiality  agreements will adequately protect its trade secrets,
know-how or other proprietary  information.  Further,  there can be no assurance
that the Company's  activities  will not infringe on the patents or  proprietary
rights of  others or that the  Company  will be able to obtain  licenses  to any
technology  that it may require to conduct its business or that, if  obtainable,
such technology can be licensed at a reasonable cost.

Technological Change and Competition: There can be no assurance that competitors
will not succeed in developing technologies and products that are more effective
than any which have been or are being  developed  by the  Company or which would
render the Company's  technology and products obsolete and noncompetitive.  Many
of the Company's  competitors have substantially greater financial and technical
resources and production,  marketing and development capabilities and experience
than the Company. Accordingly,  certain of the Company's competitors may succeed
in obtaining  regulatory  approvals more rapidly or effectively than the Company
or  enjoy   greater   manufacturing   efficiencies   and  sales  and   marketing
capabilities, areas in which the Company has limited experience.

Volatility  of Stock  Price:  The market price of the Common Stock has in recent
years fluctuated significantly,  and it is likely that the price of Common Stock
will fluctuate in the future.  Announcements  by the Company or others regarding
its operating results,  existing and future collaborations,  results of clinical
trails, scientific discoveries,  technological innovations, commercial products,
patents or  proprietary  rights or  regulatory  actions  may have a  significant
effect on the  market  price of the  Common  Stock.  Fluctuations  in  financial
performance  from  period to period  also may have a  significant  impact on the
market price of the Common Stock.

Government Regulation:  Preclinical studies,  clinical trials and the production
and marketing of the Company's products and its ongoing research and development
activities are subject to regulation by numerous governmental authorities in the
United States and other countries. If regulatory approval of a drug is obtained,
such  approval  may  involve  limitations  and  restrictions  on the drug's use.
Failure of the Company to comply with applicable  regulatory  requirements  can,
among other  things,  result in fines,  suspension  of  regulatory  approvals or
product recalls.  Additionally,  the Company is or may become subject to various
federal, state and local laws, regulations and recommendations  relating to safe
working  conditions  and  the use  and  disposal  of  hazardous  or  potentially
hazardous   substances.   The  Company  is  unable  to  predict  the  extent  of
restrictions that might arise from any governmental or administrative action.

Uncertainty  of Third-Party  Reimbursement  and Product  Pricing:  The Company's
ability  to  commercialize  products  successfully  will  depend  in part on the
availability  of  reimbursement  of the  costs  of  such  products  and  related
treatments at acceptable  levels from  government  authorities,  private  health
insurers  and other  organizations,  such as health  maintenance  organizations.
There can be no assurance  that  reimbursement  in the United  States or foreign
countries  will be available  for any products the Company has  developed or may
develop or, if available,  will either remain available or will not be decreased
in the future, or that reimbursement amounts, if any, will not reduce the demand
for, or the price of, the Company's  products,  thereby adversely  affecting the
Company's business.

Product Liability;  Limited Insurance Coverage: The testing,  marketing and sale
of human health care products  entail an inherent risk of allegations of product
liability and there can be no assurance that product  liability  claims will not
be asserted against the Company. There can be no assurance that the Company will
be able to obtain or maintain product liability insurance on acceptable terms or
that such insurance will provide adequate coverage against any potential claims.

Use of Hazardous  Materials:  The Company's research and development  activities
involve  the  controlled  use of  hazardous  materials,  chemicals,  viruses and
various  radioactive  compounds.  Although the Company  believes that its safety
procedures  for  handling  and  disposing  of such  materials  comply  with  the
standards  prescribed by state and federal  regulations,  the risk of accidental
contamination or injury from these materials cannot be completely eliminated. In
the event of such an accident,  the Company could be held liable for any damages
that result and any liability could have an adverse effect on the Company.

Attraction  and Retention of Personnel:  The future  success of the Company will
depend in large part on its ability to  continue  to attract  and retain  highly
qualified scientific,  technical,  sales and marketing and managerial personnel.
Competition for such personnel is intense and there can be no assurance that the
Company  will be able to  attract  and retain the  personnel  necessary  for the
ongoing  development  of its  business.  The loss of or failure to recruit  such
personnel could have an adverse effect on the Company.


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